A cabinet, electronic device and control method thereof

By designing a switchable dust removal device on the inner surface of the casing, the problem of difficult-to-remove dust accumulation on the fan is solved, achieving convenient and efficient dust removal and avoiding damage to parts.

CN116336010BActive Publication Date: 2026-07-03LENOVO (BEIJING) LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
LENOVO (BEIJING) LTD
Filing Date
2023-03-31
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Dust accumulated in the fans of existing electronic devices is difficult to remove efficiently, and traditional dust removal methods are cumbersome and can easily damage parts.

Method used

Design a dust removal device for the inner surface of a housing, including a support and a dust removal component. The support can drive the bearing to switch between different work positions. The dust removal component matches the shape of the fan blade. The dust removal component is brought into contact with the fan blade for cleaning by driving the support.

Benefits of technology

It achieves convenience and safety in fan dust removal, avoids damage to parts during disassembly and assembly, and improves user experience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116336010B_ABST
    Figure CN116336010B_ABST
Patent Text Reader

Abstract

This application discloses a housing, an electronic device, and a control method thereof. The housing includes a shell and a dust removal device disposed on the inner surface of the shell. The dust removal device includes a support member with a load-bearing portion and a dust removal component fixedly connected to the load-bearing portion. The dust removal component is used to remove dust from a fan located inside the shell. The support member can be driven by force so that the load-bearing portion has at least a first position and a second position relative to the shell. When the load-bearing portion is in the first position, the dust removal component does not contact the rotating fan blades; when the load-bearing portion is in the second position, the dust removal component contacts the rotating fan blades. The dust removal component has a profile shape that matches the fan blades on the side of the fan axially close to the fan blades.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and in particular to a housing, electronic equipment and its control method. Background Technology

[0002] Fans inside electronic devices, designed to meet cooling needs, often accumulate dust and other impurities after a period of use. For example, the CPU fan in a laptop frequently accumulates dust. To remove this dust and minimize its impact on cooling efficiency, current electronic devices require disassembly, exposing or removing the fan for cleaning before reassembly. This method is not only cumbersome and inconvenient for users, but it can also easily damage surrounding components during disassembly and reassembly. Summary of the Invention

[0003] On the one hand, this application provides the following technical solution:

[0004] A housing includes a housing and a dust removal device disposed on the inner surface of the housing, the dust removal device comprising:

[0005] Support component, having a load-bearing part;

[0006] A dust removal component, fixedly connected to the supporting part, is used to remove dust from the fan located inside the housing;

[0007] The support member is capable of being driven by force so that the bearing part has at least a first position and a second position relative to the housing. When the bearing part is located at the first position, the dust removal member does not contact the rotating fan blades. When the bearing part is located at the second position, the dust removal member contacts the rotating fan blades. The dust removal member has a contour shape that matches the fan blades on the side of the fan axially close to the fan blades.

[0008] Optionally, in the aforementioned housing, the dust removal component is a brush with multiple clusters of bristles spaced apart. The bristles in the same cluster are arranged along a preset line, and the rotating fan blade passes through each cluster of bristles in sequence. The preset line is consistent with the radial extension direction of the fan blade along the fan.

[0009] Optionally, in the aforementioned housing, the support member is a spring sheet having a first end and a second end opposite to each other, the bearing portion being located at the first end, and the second end being fixedly connected to the housing.

[0010] Optionally, in the aforementioned housing, the dust removal device includes a movable member that is movably disposed relative to the housing. The support member has a force-receiving part that cooperates with the movable member on the side facing away from the dust removal member. The movable member can move relative to the housing in a first direction perpendicular to the axis of the fan, or can move relative to the housing in a second direction parallel to the axis of the fan, so as to realize that the movable member applies a driving force to the force-receiving part to drive the support member.

[0011] Optionally, in the aforementioned housing, the support member is a first spring piece movably connected to the housing and capable of moving relative to the housing in a first direction perpendicular to the axis of the fan; the dust removal device includes:

[0012] The guide is located on the moving path of the support along the first direction and is fixedly connected to the housing;

[0013] An elastic element, located at the end of the support member away from the guide member, connects the support member and the housing, and is used to return the support member to its original position;

[0014] The bearing portion is located at the end of the support member away from the elastic member, and the guide member has a guide surface that is inclined relative to the first direction.

[0015] Optionally, in the aforementioned housing, the dust removal device includes a second spring sheet. The second spring sheet and the support member are located on the same plane perpendicular to the axial direction of the fan. A first portion of the second spring sheet is fixedly connected to the housing, and a second portion of the second spring sheet is movable along the axial direction of the fan. A first snap-fit ​​portion is provided on the side of the second portion near the support member, and the support member is provided with a second snap-fit ​​portion that cooperates with the first snap-fit ​​portion.

[0016] An electronic device includes a fan and a housing as disclosed in any of the preceding claims, the fan being located inside the housing and the dust removal device being located on one side axially above the fan.

[0017] Optionally, the above-mentioned electronic device also includes a heat dissipation module, which has an airflow channel. The first end of the airflow channel is connected to the air outlet of the fan through a closed ventilation duct, and the second end of the airflow channel extends to a heat dissipation port opened in the housing.

[0018] Optionally, the above-mentioned electronic device includes a controller, which is at least capable of controlling the fan blades to rotate at a first speed after receiving a first input command, and controlling the fan blades to rotate at a second speed after receiving a second input command, wherein the second speed is less than the first speed.

[0019] A control method for an electronic device, wherein the electronic device is any of the electronic devices disclosed above, the control method comprising:

[0020] After receiving a dust removal command input by the user via physical buttons, virtual buttons, or a voice recognition module, the system displays a prompt message containing preset content on the screen. The preset content includes first information to guide the user to use the dust removal device step by step and second information to prompt the user to perform a secondary confirmation operation to enter the dust removal mode. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the inner surface of the housing provided in Embodiment 1 of this application;

[0023] Figure 2 This is a schematic diagram of the outer surface of the housing provided in Embodiment 1 of this application when applied to an electronic device;

[0024] Figure 3 This is a cross-sectional schematic diagram of the housing provided in Embodiment 1 of this application when applied to an electronic device;

[0025] Figure 4 This is another cross-sectional schematic diagram of the housing provided in Embodiment 1 of this application when applied to an electronic device;

[0026] Figure 5 yes Figure 1 A schematic diagram of the structure of dust removal component 2 in the middle;

[0027] Figure 6 yes Figure 4 A top-down view of the dust removal component 2 and the fan 5.

[0028] Figure 7 This is a schematic diagram of the inner surface of the housing provided in Embodiment 2 of this application;

[0029] Figure 8 This is a three-dimensional schematic diagram of the casing after being cut apart, as provided in Embodiment 2 of this application;

[0030] Figure 9 This is another schematic diagram of the inner surface of the housing provided in Embodiment 2 of this application;

[0031] Figure 10This is a schematic diagram of the outer surface of the housing provided in Embodiment 3 of this application when applied to an electronic device;

[0032] Figure 11 yes Figure 10 A schematic diagram of the internal structure of the electronic device after the casing 3 is hidden in the middle;

[0033] Figure 12 This is a schematic diagram of the inner surface of the housing provided in Embodiment 3 of this application;

[0034] Figure 13 This is a partial structural schematic diagram of the electronic device provided in the embodiments of this application.

[0035] The diagram is marked as follows:

[0036] 1. Support component; 11. First elongated hole; 12. Protrusion; 13. Elastic component; 14. Second snap-fit ​​part;

[0037] 2. Dust removal components; 21. Brush bristles;

[0038] 3. Housing; 31. First through hole; 32. Limiting post; 33. Second through hole; 34. Second elongated hole; 35. Guide component;

[0039] 4. Card pin; 5. Fan; 51. Fan blades;

[0040] 6. Second spring clip; 61. Pressure point; 62. First locking part;

[0041] 7. Thermal conductive components; 8. Heat dissipation module. Detailed Implementation

[0042] This application provides a housing that, when applied to electronic devices, allows users to conveniently and quickly clean the internal fans of the electronic devices, saving the trouble of disassembling and assembling parts and preventing damage to the parts during the disassembly and assembly process.

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] See Figures 1-6This application provides a housing that can be used in various types of electronic devices such as laptops, servers, and computer mainframes. The housing includes a shell 3 and a dust removal device disposed on the inner surface of the shell 3. The dust removal device includes a support member 1 with a bearing portion and a dust removal component 2 fixedly connected to the bearing portion. The support member 1 can be driven by force to make the bearing portion have at least a first position and a second position relative to the shell 3, that is, the bearing portion of the support member 1 can change position relative to the shell 3. The dust removal component 2 is used to remove dust from the fan 5 located inside the shell 3. It should be understood that the fan 5 and the dust removal component 2 are located on the same side of the shell 3. It should be noted that "dust" here should be interpreted broadly, referring to any type of impurities that slowly accumulate on the fan 5 during normal use. When the support unit is in the first working position, the dust collector 2 does not contact the rotating fan blade 51 of the fan 5, meaning the fan blade 51 will not come into contact with the dust collector 2 during rotation. When the support unit is in the second working position, the dust collector 2 comes into contact with the rotating fan blade 51, meaning the fan blade 51 will come into contact with the dust collector 2 during rotation. The dust collector 2 has a contour shape that matches the fan blade 51 on the side of the fan 5 closest to the fan blade 51 along the axial direction, such as... Figure 4 As shown, this profile shape refers to the shape that corresponds to the profile of the fan blade 51 in the longitudinal section of the fan 5 (i.e., the plane passing through the axis of rotation), for example, Figure 4 The upper edge of the fan blade 51 is arc-shaped, so the side of the dust removal component 2 closest to the fan blade 51 is also arc-shaped.

[0045] Support member 1 can be driven by force to change the position of the bearing part; the driving method can be various, such as... Figure 3 As shown, in this embodiment, the support member 1 is pushed by an external object, causing the bearing part to change its position. This external object can be, for example, a chuck pin 4. In a preferred embodiment, the support member 1 is configured as a spring plate, which has a first end and a second end opposite to each other. The bearing part is located at the first end, and the second end is fixedly connected to the housing 3. Figure 3 This shows the state when the carrier is in the first working position. When it is necessary to clean the fan 5, the pin 4 can be inserted through the first through hole 31 on the housing 3 (see...). Figure 2The dust collector 2, located on the support portion of the support member 1, is pushed towards the fan 5. When the support portion reaches the second position, the rotating fan blades 51 of the fan 5 can contact the dust collector 2, thereby using the dust collector 2 to sweep away the dust on the fan 5, especially the dust accumulated in the gaps between adjacent fan blades 51 that affects airflow. The swept-down dust is blown to a predetermined location by the airflow of the fan 5, for example, directly to the outside of the casing. After dust removal, the SIM card pin 4 is pulled out from the first through hole 31. Driven by its own elastic restoring force, the support member 1 moves the support portion from the second position to the first position. Since the dust collector 2 does not contact the rotating fan blades 51 when the support portion is in the first position, it will not affect the normal operation of the fan 5. As can be seen from the above dust removal process, when electronic devices using the casing of this application need to remove dust from their internal fan 5, the user does not need to disassemble the casing. Therefore, it saves the trouble of disassembling and assembling parts and avoids damage to parts during disassembly and assembly operations. As can be seen, the casing of this application enables users to conveniently and quickly clean the dust from the internal fan 5 of electronic devices.

[0046] like Figure 5 and Figure 6 As shown, to achieve better dust removal effect, in this embodiment, the dust removal component 2 is set as a brush. This brush has multiple clusters of bristles 21 spaced apart. The bristles 21 in the same cluster are arranged along a preset line. The rotating fan blade 51 passes through each cluster of bristles 21 in sequence, and the preset line is consistent with the radial extension direction of the fan blade 51 along the fan 5. In this embodiment, the fan blade 51 extends outward in an arc from one end near the rotation center of the fan 5, and all the fan blades 51 are in a continuous arc. Figure 6 The dust collector 2 has a swirling pattern, corresponding to the extension direction of the fan blades 51. The bristles 21 of the dust collector 2 are arranged in clusters following the aforementioned arc pattern, and the spacing between each cluster is consistent with the spacing between adjacent fan blades 51. Thus, when a fan blade 51 passes the dust collector 2 as the fan 5 rotates, that fan blade 51 will sequentially overlap with each cluster of bristles 21, thereby... Figure 6 Taking the demonstration as an example, when the fan 5 rotates to this point, each cluster of bristles 21 overlaps with a fan blade 51. In other embodiments, the fan blade 51 can have other shapes extending radially along the fan 5. For example, the fan blade 51 extends outward in a straight line from one end near the rotation center of the fan 5, with all fan blades 51 presenting a radial shape. Furthermore, the dust removal component 2 can be configured not only as a brush but also as other types, such as being made of a soft material like rubber.

[0047] Considering the drawbacks of losing or being difficult to find external objects such as the SIM card pin 4, in a preferred embodiment, the dust removal device may include a movable component that is movably disposed relative to the housing 3. For example, this movable component is slidably connected to the housing 3, and the user applies a driving force to the support member 1 through the movable component. Since the movable component is disposed on the housing 3 or on other components of the electronic device, it is always kept together with the electronic device, so the user does not need to find an additional object to drive the support member 1. In order to cooperate with the movable component, a force-bearing part may be provided on the side of the support member 1 facing away from the dust removal device 2. The movable component may be configured to be able to move relative to the housing 3 in a first direction perpendicular to the axis of the fan 5, so that the movable component applies a driving force to the force-bearing part to drive the support member 1. For example, the movable component may be configured as a slider with a wedge-shaped part, which is slidably connected to the housing 3. The user can push the movable component from the outside of the housing 3 to slide it in a direction parallel to the surface of the housing 3, so that its wedge-shaped part wedges in. Figure 3 Between the support member 1 and the housing 3, the dust removal component 2 is forced to move towards the fan 5. Alternatively, the movable member can be configured to move relative to the housing 3 in a second direction parallel to the axis of the fan 5, so that the movable member applies a driving force to the force-bearing part to the support member 1. For example, the movable member can be configured as a button, which is slidably connected to the housing 3. The user can press the movable member from the outside of the housing 3 and slide it in a direction perpendicular to the surface of the housing 3, thereby pushing the dust removal component 2 towards the fan 5.

[0048] like Figure 2 and Figure 3 As shown, in an embodiment where the housing 3 has a first through hole 31 for inserting external objects such as SIM card pins 4, to prevent external dust from entering through the first through hole 31, a sealing part adapted to the first through hole 31 can be provided on the side of the dust removal component 2 near the first through hole 31. When the support part of the support member 1 is located in the aforementioned first position, this sealing part is located inside the first through hole 31. To make the outer surface of the electronic device present a regular structure, the dust removal device is preferably configured such that when the support part of the support member 1 is located in the first position, the end face of the sealing part of the dust removal component 2 is flush with the outer surface of the housing 3. In addition, the end face of the sealing part can be provided with a recessed structure for positioning external objects, so that after the SIM card pin 4 pushes the dust removal component 2 towards the fan 5, the SIM card pin 4 and the end face of the sealing part are less likely to slip, thereby ensuring that the position of the dust removal component 2 remains unchanged. In order to minimize the occupation of the internal space of the electronic device, in this embodiment, when the support part is located in the first position, the support member 1 is in close contact with the inner surface of the housing 3, such as Figure 3 As shown.

[0049] See Figures 7-9This application provides a housing in Embodiment 2. The main difference between Embodiment 2 and Embodiment 1 is that Embodiment 2 has a first elongated hole 11 at the first end of the support member 1, that is, the end not fixedly connected to the housing 3. Simultaneously, a limiting post 32 is provided on the inner surface of the housing 3, which slides through the first elongated hole 11. The limiting post 32 is fixed to the housing 3 and passes through the first elongated hole 11. The dust removal component 2 is located in the middle of the support member 1, preferably near the first elongated hole 11. Figure 8 and Figure 9 As shown, when the pin 4 is used to push the supporting part of the support member 1, i.e., the part connecting the dust collector 2, to the aforementioned second working position, i.e., the dust removal working position, through the first through hole 31 on the housing 3, the limiting post 32 abuts against the end of the first elongated hole 11 away from the dust collector 2. This avoids the problem of excessive displacement of the dust collector 2 due to improper force control when the user uses the pin 4, which could damage the fan blade 51 in contact with the dust collector 2. Moreover, when the support member 1 is set as a spring, the setting of the limiting post 32 and the first elongated hole 11 also avoids the problem of the support member 1 failing to spring back due to excessive deformation. It can be seen that the setting of the limiting post 32 and the first elongated hole 11 makes the use of the dust removal device safer and more reliable. It should be noted that the end of the limiting post 32 away from the housing 3 is provided with an enlarged part that is stuck outside the first elongated hole 11, so the support member 1 will not detach from the limiting post 32. It is easy to understand that in other embodiments, the second end of the support member 1 can be set not to be fixedly connected to the housing 3, but to have the same structure as the first end, that is, both ends of the support member 1 are provided with a first elongated hole 11, and a limiting post 32 is inserted at the corresponding position, which can also achieve the problem of preventing the dust removal component 2 from displacing excessively.

[0050] See Figures 10-12 This application provides a housing in embodiment three. In embodiment three, the support member 1 is configured as a first spring piece movably connected to the housing 3, and is capable of moving relative to the housing 3 in a first direction perpendicular to the axis of the fan 5. The dust removal device includes: a guide member 35, located on the moving path of the support member 1 along the first direction, and fixedly connected to the housing 3; and an elastic member 13, located at the end of the support member 1 away from the guide member 35, connecting the support member 1 and the housing 3, for returning the support member 1 to its original position. Figure 12 As shown, the bearing portion is located at the end of the support member 1 away from the elastic member 13, and the guide member 35 has a guide surface that is inclined relative to the first direction. The dust collector 2 is connected to the bearing portion, and the guide surface of the guide member 35 can be set as an inclined plane or an arc surface, forming a slope on the moving path of the support member 1. Figure 12 The demonstration shows the support member 1 in its first working position. When it is necessary to switch the support member to the second working position for dust removal, the user can apply force to the part of the support member 1 exposed on the outer surface of the housing 3, causing the support member 1 to... Figure 12When the support 1 moves to the right, it will slide along the guide surface when it passes the guide 35. Since the guide surface is inclined relative to the first direction mentioned above, that is, the initial moving direction of the support 1, the guide 35 forces the support 1 to bend and deform. In this way, the dust removal component 2 will move away from the inner surface of the housing 3 and eventually come into contact with the rotating fan blade 51.

[0051] like Figure 10 and Figure 11 As shown, to facilitate user operation of the support member 1 from the outside of the housing 3, a protrusion 12 can be provided that slides into the second elongated hole 34 on the housing 3. The protrusion 12 is fixedly connected to the support member 1, and the length direction of the second elongated hole 34 is parallel to the aforementioned first direction. The protrusion 12 has a size of about one finger width and is engaged with the outside of the second elongated hole 34. The user can press their finger on the protrusion 12 and push it along the second elongated hole 34. To increase the friction with the finger, the surface of the protrusion 12 can be provided with a raised structure, for example... Figure 10 The prism structure shown.

[0052] To prevent the support member 1 from being moved to the guide member 35 by the user in case of accidental operation, a locking member can be provided to restrict the support member 1. Figure 12 As shown, when the dust removal device is needed, the user must first release the locking member's restriction on the support member 1 before the support member 1 can move towards the guide member 35. For example, in embodiment three, the dust removal device includes a second spring 6. The second spring 6 and the support member 1 are located on the same plane perpendicular to the axis of the fan 5. A first portion of the second spring 6 is fixedly connected to the housing 3, and a second portion of the second spring 6 can move along the axis of the fan 5. A first latching portion 62 is provided on the side of the second portion near the support member 1, and the support member 1 is provided with a second latching portion 14 that cooperates with the first latching portion 62. Figure 10 and Figure 11 As shown, the housing 3 has a second through hole 33 for inserting external objects such as the pin 4. The second portion of the second spring piece 6 has a pressure point 61 on the side near the housing 3 corresponding to the position of the second through hole 33. The user inserts an external object through the second through hole 33 to move the second portion of the second spring piece 6. When the first locking part 62 leaves the plane where the second locking part 14 is located, the two separate, thus releasing the second spring piece 6 from the constraint of the support member 1. After dust removal, the user releases the protrusion 12 with their finger, and the support member 1 returns to its original position under the elastic restoring force of the elastic member 13. Figure 12 At the position shown, the first locking part 62 will automatically return to the plane where the second locking part 14 is located under the elastic restoring force of the second spring piece 6, thus locking with the first locking part 62. Figure 12As shown, the first snap-fit ​​part 62 and the second snap-fit ​​part 14 can be configured as a hook-shaped structure, the elastic member 13 can be configured as a coil spring structure, and the elastic member 13 can be configured as an integral structure with the support member 1.

[0053] This application also provides an electronic device, which includes a fan 5 and the housing disclosed in the above embodiments. The fan 5 is located inside the housing 3, and the dust removal device is located on one side of the fan 5 along its axial direction. Since the vehicle frame disclosed in the above embodiments has the aforementioned technical effects, all-terrain vehicles with this frame also have the aforementioned technical effects, which will not be elaborated upon here. Specifically, the electronic device can be of various types, such as a laptop computer, a server, or a computer host.

[0054] like Figure 3 As shown, in a preferred embodiment, the electronic device further includes a heat dissipation module 8. The heat dissipation module 8 has an airflow channel. The first end of the airflow channel is connected to the air outlet of the fan 5 via a closed ventilation duct. The second end of the airflow channel extends to a heat dissipation opening in the housing 3. This ventilation duct can be integrated into the fan 5, meaning the airflow channel of the heat dissipation module 8 can be directly connected to the air outlet of the fan 5. The heat-conducting component 7 conducts heat from the heat-generating components of the electronic device to the heat dissipation module 8. The air blown out by the fan 5 passes through the airflow channel of the heat dissipation module 8, carrying away the heat.

[0055] In a preferred embodiment, the electronic device includes a controller capable of controlling the fan blades 51 of the fan 5 to rotate at a first speed upon receiving a first input command, and controlling the fan blades 51 of the fan 5 to rotate at a second speed upon receiving a second input command, the second speed being less than the first speed. When the user cleans the fan 5, the fan 5 can be operated at a lower speed than in normal operating mode. This helps to prevent the fan blades 51 from running too fast and being damaged upon contact with the dust removal component 2. That is, the first speed can be the normal operating speed of the fan 5, and the second speed can be the operating speed of the fan 5 when cleaning the fan 5.

[0056] This specification describes the structure of each part in a progressive manner, with each part highlighting the differences from existing structures. The overall and partial structures of the housing and electronic equipment can be obtained by combining the structures of the above-mentioned multiple parts.

[0057] This application also provides a control method for an electronic device, which is the electronic device disclosed in the above embodiments. The control method includes: after the system receives a dust removal command input by the user through physical buttons, virtual buttons, or a voice recognition module, it displays a prompt message containing preset content on the display. The preset content includes first information for guiding the user to use the dust removal device step by step and second information for prompting the user to perform a secondary confirmation operation to enter the dust removal mode. For example, when the electronic device is a laptop, the above prompt message may be: "After entering the dust removal mode, the system will enter S3 sleep state, and the fan will continue to rotate for 3 minutes. Please close the laptop lid and use the SIM card ejector tool to press at the dust removal brush point on the back cover to make the brush gently brush the fan blades. During this process, the dust will be blown out along the rear air outlet. After 3 minutes, the system will indicate completion. After waking up the computer, it can be used normally. Please press the Enter key to enter the dust removal mode."

[0058] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A housing, comprising a housing and a dust removal device disposed on the inner surface of the housing, the dust removal device comprising: Support component, having a load-bearing part; A dust removal component, fixedly connected to the bearing portion, is used to remove dust from the fan located inside the housing; The support member can be driven by force to make the bearing part have at least a first position and a second position relative to the housing. During the switching between the first position and the second position, the bearing part undergoes axial displacement of the fan based on the elastic deformation of the support member. The fan is a centrifugal fan. When the supporting part is located at the first working position, the dust removal component does not contact the rotating fan blades; when the supporting part is located at the second working position, the dust removal component contacts the rotating fan blades; the dust removal component has a contour shape that matches the fan blades on the side of the fan axially close to the fan blades.

2. The housing according to claim 1, wherein the dust removal component is a brush with multiple clusters of bristles spaced apart, the bristles in the same cluster being arranged along a preset line, the rotating fan blade passing through each cluster of bristles in sequence, and the preset line being consistent with the radial extension direction of the fan blade along the fan.

3. The housing according to claim 1 or 2, wherein the support member is a spring sheet having a first end and a second end opposite to each other, the bearing portion is located at the first end, and the second end is fixedly connected to the housing.

4. The housing according to claim 3, wherein the dust removal device includes a movable member movably disposed relative to the housing, and the support member has a force-receiving part cooperating with the movable member on the side opposite to the dust removal member, the movable member being able to move relative to the housing in a first direction perpendicular to the axial direction of the fan, or being able to move relative to the housing in a second direction parallel to the axial direction of the fan, so as to realize that the movable member applies a driving force to the force-receiving part to drive the support member.

5. The housing according to claim 1 or 2, wherein the support member is a first spring piece movably connected to the housing and capable of moving relative to the housing in a first direction perpendicular to the axial direction of the fan, and the dust removal device comprises: The guide is located on the moving path of the support along the first direction and is fixedly connected to the housing; An elastic element, located at the end of the support member away from the guide member, connects the support member and the housing, and is used to return the support member to its original position; The bearing portion is located at the end of the support member away from the elastic member, and the guide member has a guide surface that is inclined relative to the first direction.

6. The housing according to claim 5, wherein the dust removal device includes a second spring sheet, the second spring sheet and the support member are located on the same plane perpendicular to the axial direction of the fan, a first portion of the second spring sheet is fixedly connected to the housing, a second portion of the second spring sheet is movable along the axial direction of the fan, a first snap-fit ​​portion is provided on the side of the second portion near the support member, and the support member is provided with a second snap-fit ​​portion that cooperates with the first snap-fit ​​portion.

7. An electronic device comprising a fan and a housing as described in any one of claims 1 to 6, wherein the fan is located inside the housing, the fan is a centrifugal fan, and the dust removal device is located on one side along the axial direction of the fan.

8. The electronic device according to claim 7 further includes a heat dissipation module, the heat dissipation module having an airflow channel, a first end of the airflow channel being connected to the air outlet of the fan via a closed ventilation duct, and a second end of the airflow channel extending to a heat dissipation port opened in the housing.

9. The electronic device of claim 7, comprising a controller, the controller being at least capable of controlling the fan blades to rotate at a first speed after receiving a first input instruction, and controlling the fan blades to rotate at a second speed after receiving a second input instruction, the second speed being less than the first speed.

10. A control method for an electronic device, wherein the electronic device is the electronic device as described in any one of claims 7 to 9, the control method comprising: After receiving a dust removal command input by the user via physical buttons, virtual buttons, or a voice recognition module, the system displays a prompt message containing preset content on the screen. The preset content includes first information to guide the user to use the dust removal device step by step and second information to prompt the user to perform a secondary confirmation operation to enter the dust removal mode.