Dust accumulation prevention fan and electronic equipment

Abstract

The invention relates to the technical field of cooling fans, and provides a dust accumulation prevention fan and electronic equipment. The dust accumulation prevention fan comprises a fan shell, fan blades and a conductive part; a plurality of fan blades are wound around the mounting rotating shaft and are rotatably arranged on the fan shell through the mounting rotating shaft; the conductive part is arranged on the surface of the fan blade and is grounded; the electric conduction piece can release charges on the surfaces of the fan blades in a grounding mode. The electronic equipment comprises the anti-dust-deposition fan, the electric charges on the surfaces of the fan blades can be grounded and released through the conductive parts, so that the phenomenon that electrostatic dust deposition layers appear after the fan blades are used for a long time is prevented, and the anti-dust-deposition fan and the electronic equipment have the beneficial effects of electrostatic dust deposition prevention, high heat dissipation efficiency and low working noise.

Description

Technical Field

[0001] The present disclosure relates to the technical field of heat dissipation fans, and in particular to a dust-proof fan and electronic equipment. Background Art

[0002] Laptop computers or computer hosts in the prior art are all equipped with motherboard heat dissipation devices, and the heat dissipation devices generally use cooling fans for air cooling. In order to increase the heat dissipation performance of the fan, the blades of the cooling fan are becoming denser and denser. However, this will cause a certain amount of dust to accumulate on the fins in the fan shell and the blades of the cooling fan after a certain period of use. There are currently mature and reliable methods for dust removal on the fan fins, but for the problem of dust accumulation on the blades, the existing dust removal methods generally include the following: 1. Adding nano-coatings to the surface of the blades. Although this can reduce the van der Waals force on the surface of the blades, it does not improve the electrostatic force of the blade surface by an order of magnitude, and the anti-dust effect is weak: 2. Regularly reverse the blades for dust removal. The vibration backwash force caused by the reversal is not large enough, and the initial effect on the dust particles electrostatically adsorbed on the surface of the blades is general; 3. Negative ions are generated on the metal shell of the fan through technical means, but this method can only neutralize the positive charge of particles near the casing to a certain extent, and is of limited help in releasing the electrostatic force of plastic blades, and the anti-dust effect on the blades is still poor.

[0003] In view of this, there is an urgent need in the market for a dust-proof fan blade that can prevent electrostatic adsorption of dust, so as to solve the problem in the prior art that the heat dissipation fan blade is prone to dust accumulation after being used for a period of time. Summary of the invention

[0004] The embodiments of the present disclosure provide a dust-proof fan and an electronic device, in order to solve the problem in the prior art that dust is easily accumulated on the blades of the heat dissipation fan after being used for a period of time.

[0005] The dust-proof fan provided by the embodiment of the present disclosure includes a fan housing, fan blades and a conductive member;

[0006] A plurality of fan blades are arranged around the mounting shaft and are rotatably mounted on the fan housing via the mounting shaft;

[0007] The conductive member is arranged on the surface of the fan blade and / or inside the fan blade, and is grounded;

[0008] Wherein, the conductive member can discharge the electric charge on the surface of the fan blade by connecting it to the ground.

[0009] In one possible implementation manner, the conductive member is one or more of a metal wire, a metal mesh, a metal sleeve or a metal strip disposed on the surface of the fan blade and / or inside the fan blade.

[0010] In one possible implementation manner, the conductive member is flush-mounted and fixed on the surface of the fan blade and / or centrally disposed inside the fan blade;

[0011] Alternatively, the conductive member protrusion is attached and fixed to the surface of the fan blade.

[0012] In one possible implementation manner, the conductive member is disposed on the blade surface of the fan blade facing the air outlet side;

[0013] Alternatively, the conductive element is disposed on the blade surfaces on both sides of the fan blade facing the wind outlet side and the fan blade surfaces facing away from the wind outlet side.

[0014] In one possible implementation manner, the dust-proof fan further includes a fan circuit board;

[0015] The conductive member is electrically connected to a ground port in the fan circuit board through a connecting cable.

[0016] In one possible implementation, the dust-proof fan further comprises a fan motor;

[0017] The motor stator in the fan motor is arranged on the fan housing and is electrically connected to the ground port in the fan circuit board;

[0018] The conductive member is electrically connected to the motor stator.

[0019] In one possible implementation, the dust-proof fan further comprises a fan motor;

[0020] The motor mover in the fan motor is arranged on the mounting shaft and is electrically connected to the ground port in the fan circuit board;

[0021] The conductive member is electrically connected to the motor mover.

[0022] In one possible implementation manner, the mounting shaft comprises a shaft core and a mounting shell welded to one end of the shaft core;

[0023] The fan blades are arranged around the outer periphery of the mounting shell;

[0024] The conductive member is electrically connected to a grounding port in the fan circuit board through the bottom wall and / or the inner peripheral wall of the mounting shell.

[0025] In one possible implementation manner, the conductive member is disposed on the outer surface wall of the fan blade, and / or is disposed inside the fan blade and connected to the outer surface wall of the fan blade;

[0026] The outer surface wall of the fan blade is grounded.

[0027] In addition, an embodiment of the present disclosure further provides an electronic device, which includes a device body and the above-mentioned dust-proof fan;

[0028] Wherein, the fan blades are used to dissipate heat from the heat generating components in the device body;

[0029] The conductive member is directly or indirectly electrically connected to a grounding port of a circuit board in the device body.

[0030] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0031] When the dust-proof fan provided by the disclosed embodiment is used, since the surface of the fan blades is provided with a conductive part and the conductive part itself is grounded, the electric charge generated during the rotation of the fan blades can be directly grounded and released through the conductive part, thereby effectively solving the problem of electrostatic adsorption of dust particles in the air by fans made of plastic materials, and avoiding the phenomenon of dust layer on the surface of the fan blades after long-term use, so that the dust-proof fan can still maintain high blowing and heat dissipation efficiency and excellent silent working state after long-term use.

[0032] In addition, the electronic device provided by the embodiment of the present disclosure includes the above-mentioned anti-dust accumulation fan, which can also achieve all the beneficial effects of the above-mentioned anti-dust accumulation fan.

[0033] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, in which:

[0035] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0036] Figure 1 A three-dimensional view of the dust-proof fan provided by an embodiment of the present disclosure is shown;

[0037] Figure 2 A first structural diagram of a fan blade in a dust-proof fan provided by an embodiment of the present disclosure is shown;

[0038] Figure 3 A second structural diagram of the fan blades in the dust-proof fan provided by the embodiment of the present disclosure is shown;

[0039] Figure 4 A third structural diagram of the fan blades in the dust-proof fan provided by the embodiment of the present disclosure is shown;

[0040] Figure 5A vertical cross-sectional view of the dust-proof fan provided by an embodiment of the present disclosure is shown.

[0041] Explanation of the numbers in the figure: 1. Fan housing;

[0042] 2. Fan blades; 21. Install the shaft; 211. The shaft core; 212. Install the shell;

[0043] 3. Conductive parts. DETAILED DESCRIPTION

[0044] In order to make the purpose, features, and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0045] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0046] Combination Figure 1 and Figure 2 As shown, an embodiment of the present disclosure provides a dust-proof fan, which includes a fan housing 1, fan blades 2 and a conductive member 3; a plurality of fan blades 2 are arranged along a mounting shaft 21, and are rotatably arranged on the fan housing 1 through the mounting shaft 21; the conductive member 3 is arranged on the surface of the fan blade 2 and / or inside the fan blade 2, and is itself connected to the ground; wherein the conductive member 3 can release the charge on the surface of the fan blade 2 to the ground.

[0047] The anti-dust fan can be specifically but not limited to being used in a heat dissipation device of a notebook computer or a computer host motherboard, and can be used as an air-cooling heat dissipation fan. This example is used to illustrate the use process.

[0048] When the dust-proof fan is used, it is first installed in the installation position of the motherboard heat dissipation device through the fan housing 1, and a plurality of fan blades 2 are arranged along the installation shaft 21, and can be rotatably set on the fan housing 1 through the installation shaft 21. In this way, when the driving motor drives the installation shaft 21 to rotate relative to the fan housing 1, the plurality of fan blades 2 can rotate accordingly, thereby forming a blowing airflow to dissipate heat for the motherboard.

[0049] In addition, since a conductive member 3 is provided on the surface and / or inside of the fan blade 2, and the conductive member 3 itself is grounded, the electric charge generated during the rotation of the fan blade 2 can be directly grounded and released through the conductive member 3, thereby effectively solving the problem of the fan blade 2 made of plastic material adsorbing dust particles in the air with electrostatic charge, and avoiding the phenomenon of dust layer accumulated on the surface of the fan blade 2 after long-term use, so that the dust-proof fan can still maintain high air blowing and heat dissipation efficiency and excellent silent working state after long-term use.

[0050] In one possible implementation manner, the conductive member 3 is one or more of a metal wire, a metal mesh, a metal sleeve or a metal strip disposed on the surface of the fan blade 2 and / or inside the fan blade 2 .

[0051] Specific, combined Figure 1 and Figure 2 To further explain in detail, when the conductive member 3 is specifically configured as a metal wire or a metal strip located on the surface of the fan blade 2, the length and shape of the metal wire or the metal strip can be adjusted according to the length and shape of the fan blade 2, and the metal wire or the metal strip can be configured into a variety of shapes such as a straight line, a broken line, a wavy line, and a spiral line; when the conductive member 3 is specifically configured as a metal mesh or a metal sleeve located on the surface of the fan blade 2, the metal mesh or the metal sleeve can be partially or completely disposed on the surface of the fan blade 2 along the length direction, and the metal sleeve can also be configured in a hollow or semi-hollow manner.

[0052] The specific arrangement of the conductive member 3 has the beneficial effects of being simple in structure and being able to ground and release the electric charges at various locations on the surface of the fan blade 2 .

[0053] In one possible implementation manner, the conductive member 3 is flushly embedded and fixed on the surface of the fan blade 2 and / or centrally arranged inside the fan blade 2; or, the conductive member 3 is protruding and fixed on the surface of the fan blade 2.

[0054] Specific, combined Figure 1 and Figure 2 To further explain in detail, when the conductive part 3 is specifically flushly embedded and fixed on the surface of the fan blade 2, specifically when the fan blade 2 is injection molded and produced, the conductive part 3 can be firstly arranged in the inner cavity wall of the injection mold, and after the fan blade 2 is injection molded in the injection mold, the conductive part 3 can be flushly embedded and fixed on the surface of the fan blade 2; the conductive part 3 is raised and fixed on the surface of the fan blade 2, and the conductive part 3 can be specifically set to a metal foil. The conductive part 3 is extremely thin in thickness, and after being raised and fixed on the surface of the fan blade 2, it will basically not affect the surface of the fan blade 2, and can also ground and release the charges at various places on the surface of the fan blade 2.

[0055] The specific installation method of the above-mentioned conductive member 3 has the beneficial effects of being simple in structure and being able to be stably and reliably arranged on the surface of the fan blade 2 .

[0056] In one possible implementation, the conductive member 3 is disposed on the blade surface of the fan blade 2 facing the air outlet side;

[0057] And / or, the conductive member 3 is disposed on the blade surface of the fan blade 2 facing toward and away from the air outlet side.

[0058] Specific, combined Figure 1 and Figure 2 To further explain in detail, when the conductive component 3 is only provided on the blade surface of the fan blade 2 facing the air outlet side, the conductive component 3 can effectively ground and release the charges in the blade surface of the fan blade 2 facing the air outlet side in a timely manner, thereby avoiding the formation of a dust layer on the blade surface of the fan blade 2 facing the air outlet side; when the conductive component 3 is simultaneously provided on the blade surfaces of the fan blade 2 facing and facing away from the air outlet side, the conductive component 3 can effectively ground and release the charges in the blade surfaces of the fan blade 2 facing and facing away from the air outlet side in a timely manner, thereby avoiding the formation of a dust layer on the blade surface of the fan blade 2 facing the air outlet side and the blade surface facing away from the air outlet side, thereby fully ensuring the cleanliness of the surface of the fan blade 2, and effectively reducing the working noise generated when the fan blade 2 rotates.

[0059] In one possible implementation manner, the dust-proof fan further includes a fan circuit board; the conductive member 3 is electrically connected to a ground port in the fan circuit board via a connecting cable.

[0060] Specific, combined Figure 1 and Figure 2 To further explain in detail, the dust-proof fan provided in the embodiment of the present disclosure is provided with a fan circuit board, and the conductive component 3 is electrically connected to the grounding port in the fan circuit board through a connecting cable, and the grounding port in the fan circuit board can be electrically connected to the grounding port in the mainboard device, thereby realizing a grounding path mode of "conductive component 3-fan circuit board-mainboard device-grounding", which can ensure that the charge on the surface of the fan blade 2 can be safely, effectively and timely grounded and released.

[0061] In one embodiment, the dust-proof fan further includes a fan motor; a motor stator in the fan motor is disposed in the fan housing 1 and is electrically connected to a ground port in the fan circuit board; and a conductive member 3 is electrically connected to the motor stator.

[0062] Specific, combined Figure 1 and Figure 2 To further explain in detail, the motor stator in the fan motor is arranged in the fan housing 1, and the motor stator and the fan housing 1 are both fixedly installed, and the motor stator is electrically connected to the grounding port in the fan circuit board. In this way, the conductive member 3 is electrically connected to the motor stator, and the grounding path mode of "conductive member 3-motor stator-fan circuit board-ground" can be realized, which can also ensure that the charge on the surface of the fan blade 2 can be safely, effectively and timely grounded and released.

[0063] In one possible implementation, the dust-proof fan further includes a fan motor; a motor mover in the fan motor is disposed on the mounting shaft 21 and is electrically connected to a ground port in the fan circuit board; and the conductive member 3 is electrically connected to the motor mover.

[0064] Specific, combined Figure 1 and Figure 2 To further explain in detail, the motor mover in the fan motor is provided with an installation shaft 21, and both the motor mover and the installation shaft 21 can be rotatably installed, and the motor mover is electrically connected to the grounding port in the fan circuit board. In this way, the conductive member 3 is electrically connected to the motor mover, and a grounding path of "conductive member 3-motor mover-fan circuit board-ground" can be realized, which can also ensure that the charge on the surface of the fan blade 2 can be safely, effectively and timely grounded and released.

[0065] In one embodiment, the mounting shaft 21 includes a shaft core 211 and a mounting shell 212 welded to one end of the shaft core 211; the fan blades 2 are arranged around the outer periphery of the mounting shell 212; and the conductive member 3 is electrically connected to the grounding port in the fan circuit board through the bottom wall and / or inner wall of the mounting shell 212.

[0066] Specific, combined Figure 1 and Figure 2 To further explain in detail, the mounting shaft 21 is specifically configured to include a shaft core 211 and a mounting shell 212 welded to one end of the shaft core 211, and the fan blades 2 are arranged around the outer periphery of the mounting shell 212, and the conductive member 3 is electrically connected to the grounding port in the fan circuit board through the bottom wall and / or the inner wall of the mounting shell 212, so that a grounding path of "conductive member 3-mounting shell 212-fan circuit board-grounding" can be realized, which can also ensure that the charge on the surface of the fan blades 2 can be safely, effectively and timely grounded and released.

[0067] In one possible implementation, the conductive member 3 is disposed on the outer surface wall of the blade 2 and / or disposed inside the blade 2 and connected to the outer surface wall of the blade 2; and the outer surface wall of the blade 2 is grounded.

[0068] Specific, combined Figure 1 and Figure 2 To further explain in detail, the conductive member 3 is specifically arranged on the outer surface wall of the fan blade 2, and the outer surface wall of the fan blade 2 is directly grounded, so that the conductive member 3 can directly release the charge on the surface of the fan blade 2 by grounding.

[0069] In addition, an embodiment of the present disclosure also provides an electronic device, which includes a device body and the above-mentioned anti-dust fan; wherein the fan blades 2 are used to blow heat to the heat generating components in the device body; and the conductive member 3 is directly or indirectly electrically connected to the ground port of the circuit board in the device body.

[0070] The electronic device may specifically be, but not limited to, a laptop computer, a desktop computer, etc., and the above-mentioned dust-proof fan may be used as a cooling fan in the cooling device of the electronic device.

[0071] Since the electronic device includes the above-mentioned anti-dust fan, the beneficial effects of the anti-static dust layer on the blades of the anti-dust fan, high heat dissipation efficiency and low working noise can also be achieved, which will not be further elaborated here.

[0072] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0073] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A dust-proof fan, characterized in that: include: Fan housing (1); A plurality of fan blades (2) are arranged around a mounting shaft (21) and are rotatably mounted on the fan housing (1) via the mounting shaft (21); A conductive member (3) is arranged on the surface of the fan blade (2) and / or inside the fan blade (2), and is itself grounded; The conductive member (3) is capable of releasing the electric charge on the surface of the fan blade (2) by connecting it to the ground.

2. The dust-proof fan according to claim 1, characterized in that: The conductive member (3) is one or more of a metal wire, a metal mesh, a metal sleeve or a metal strip arranged on the surface of the fan blade (2) and / or inside the fan blade (2).

3. The dust-proof fan according to claim 1, characterized in that: The conductive member (3) is flush-mounted and fixed on the surface of the fan blade (2) or centrally arranged inside the fan blade (2); Alternatively, the conductive member (3) is protruding and fixed on the surface of the fan blade (2).

4. The dust-proof fan according to claim 1, characterized in that: The conductive member (3) is arranged on the blade surface of the fan blade (2) facing the air outlet side; The conductive member (3) is arranged on the blade surfaces of the fan blade (2) on both sides facing the air outlet side and the side facing away from the air outlet side.

5. The dust-proof fan according to claim 1, characterized in that: The dust-proof fan further comprises a fan circuit board; The conductive member (3) is electrically connected to a grounding port in the fan circuit board via a connecting cable.

6. The dust-proof fan according to claim 5, characterized in that: The anti-dust fan also includes a fan motor; The motor stator in the fan motor is arranged on the fan housing (1) and is electrically connected to the grounding port in the fan circuit board; The conductive member (3) is electrically connected to the motor stator.

7. The dust-proof fan according to claim 5, characterized in that: The anti-dust fan also includes a fan motor; The motor mover in the fan motor is arranged on the mounting shaft (21) and is electrically connected to a grounding port in the fan circuit board; The conductive member (3) is electrically connected to the motor mover.

8. The dust-proof fan according to claim 5, characterized in that: The mounting shaft (21) comprises a shaft core (211) and a mounting shell (212) welded to one end of the shaft core (211); The fan blades (2) are arranged around the outer periphery of the mounting shell (212); The conductive member (3) is electrically connected to a grounding port in the fan circuit board through the bottom wall and / or the inner peripheral wall of the mounting shell (212).

9. The dust-proof fan according to claim 5, characterized in that: The conductive member (3) is arranged on the outer surface wall of the fan blade (2), and / or is arranged inside the fan blade (2) and connected to the outer surface wall of the fan blade (2); Furthermore, the outer surface wall of the fan blade (2) is grounded.

10. An electronic device, characterized in that: It comprises a device body and a dust-proof fan as described in any one of claims 1 to 9; The fan blades (2) are used to dissipate heat from the heat generating components in the device body; The conductive member (3) is directly or indirectly electrically connected to a grounding port of a circuit board in the device body.

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