Drive components, floor brush units and cleaning equipment

Abstract

This application provides a drive assembly, a floor brush device, and a cleaning device. The drive assembly includes a drive mechanism and a mating component. The drive mechanism has a heat dissipation duct. A cover plate is provided at one end of the drive mechanism, and a heat dissipation port communicating with the heat dissipation duct is provided on the cover plate. The drive mechanism has an output shaft extending out of the cover plate. The mating component is movably mounted on the drive mechanism, and an elastic element is provided between the mating component and the drive mechanism. The mating component can move relative to the cover plate between a first position and a second position. The mating component is drively connected to the output shaft, and the drive mechanism drives the mating component to rotate synchronously through the output shaft. The mating component can move to the first position in a direction away from the drive mechanism under the action of an external force, and move to the second position in a direction close to the drive mechanism under the action of the elastic element after the external force is removed. When in the first position, the mating component separates from the cover plate to open the heat dissipation port. When in the second position, the mating component abuts against the cover plate to seal the heat dissipation port.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, and in particular to a drive component, a floor brush device, and a cleaning device. Background Technology

[0002] With economic development and improved living standards, people's demands for environmental hygiene are increasing. To save manpower, various cleaning equipment has emerged. Cleaning equipment is usually equipped with cleaning units for cleaning work surfaces, such as rollers and brushes. The drive component on the cleaning equipment can drive the cleaning unit to rotate, thereby cleaning the work surface. In the prior art, the cleaning unit is usually detachably connected to the drive component, allowing users to remove and replace the cleaning unit.

[0003] However, when users disassemble the cleaning unit for cleaning, liquid may enter the exposed drive components, causing a short circuit in the motor. To address this technical problem, prior art CN115005718A provides a cleaning device with a waterproof sealing design for the drive unit. Specifically, this solution allows for heat dissipation by opening the air inlet through a seal when engaged with the roller brush, and closes the air inlet through the seal after disengagement from the roller brush to prevent water ingress. However, with this solution, the seal may be blown open by the impact force of the water flow during rinsing, leading to seal failure. If the seal is fixed in place, it will significantly reduce the heat dissipation performance of the drive components during operation. Utility Model Content

[0004] In view of this, embodiments of this application provide a drive component, a floor brush device, and a cleaning device to solve the above-mentioned problems existing in the prior art.

[0005] According to a first aspect of the embodiments of this application, a driving component is provided, including:

[0006] A drive mechanism is provided, wherein a heat dissipation duct is provided in the drive mechanism; a cover plate is provided at one end of the drive mechanism, and a heat dissipation port communicating with the heat dissipation duct is provided on the cover plate; the drive mechanism has an output shaft that extends out of the cover plate.

[0007] A mating component is movably mounted on the drive mechanism, and an elastic element is provided between the mating component and the drive mechanism. The mating component is configured to move relative to the cover plate between a first position and a second position. The mating component is drively connected to the output shaft, and the drive mechanism is configured to drive the mating component to rotate synchronously via the output shaft.

[0008] The mating component is configured to move to a first position in a direction away from the drive mechanism under the action of an external force, and to move to a second position in a direction close to the drive mechanism under the action of an elastic component after the external force is removed;

[0009] When in the first position, the mating component separates from the cover plate to open the heat dissipation vent;

[0010] When in the second position, the mating component abuts against the cover plate to seal the heat dissipation vent.

[0011] In one embodiment of this application, the mating member has a pressing portion on the side facing the cover plate. When in the second position, at least a portion of the pressing portion is configured to abut against the cover plate to seal the heat dissipation port.

[0012] In one embodiment of this application, the pressing portion is configured to extend radially outward from the edge of the mating member.

[0013] In one embodiment of this application, the heat dissipation port includes at least a first heat dissipation hole disposed in the middle region of the cover plate, the output shaft is configured to pass through the first heat dissipation hole for transmission connection with the mating member; the pressing part is configured to mate with the end face of the cover plate located outside the first heat dissipation hole.

[0014] In one embodiment of this application, the heat dissipation port includes at least a plurality of second heat dissipation holes distributed in the circumferential direction of the end face of the cover plate; the pressing part is configured to abut against the position of the second heat dissipation holes to seal the second heat dissipation holes.

[0015] In one embodiment of this application, the heat dissipation port includes at least a plurality of third heat dissipation holes distributed on the circumferential sidewall of the cover plate; the pressing part is configured as a sleeve structure extending in the axial direction, the sleeve structure being configured to be fitted onto the outer side of the cover plate so that its inner wall abuts against the third heat dissipation holes.

[0016] In one embodiment of this application, the diameter of the cover plate is greater than or equal to the diameter of the pressing portion.

[0017] In one embodiment of this application, the mating member is provided with a ferromagnetic part, which is configured to drive the mating member to move away from the cover plate to a first position under the action of magnetic force.

[0018] In one embodiment of this application, a limiting member is provided at the end of the output shaft. The limiting member is configured to restrict the degree of freedom of the mating member to move in a direction away from the drive mechanism. The elastic member is a spring preloaded between the limiting member and the mating member.

[0019] In one embodiment of this application, the drive mechanism includes a motor body and a motor housing sleeved on the outside of the motor body, with the cover plate disposed at one end of the motor housing; the heat dissipation duct is formed at least by the gap between the motor housing and the motor body; in the first position, the mating member is configured to be relatively far away from the motor body; in the second position, the mating member is configured to be relatively close to the motor body.

[0020] In one embodiment of this application, the cover plate is configured to be made of a soft rubber material.

[0021] According to a second aspect of the embodiments of this application, a floor brush device is provided, comprising:

[0022] Floor brush housing;

[0023] According to the first aspect of the embodiments of this application, the driving assembly has one end of the driving assembly away from the cover plate connected to the floor brush housing;

[0024] A cleaning unit, detachably mounted to the drive assembly, and configured to rotate about its axis under the drive of the drive assembly to clean the working surface;

[0025] When the cleaning unit is assembled on the drive mechanism, the cleaning unit is configured to drive the mating component to move and remain in the first position; when the cleaning unit is disengaged from the drive mechanism, the mating component is reset to the second position under the action of the elastic member.

[0026] In one embodiment of this application, the cleaning unit has an inner cavity and an open end communicating with the inner cavity, and a transmission part for engaging with a mating member is provided in the inner cavity; the mating member is configured to extend into the inner cavity through the open end and be drively connected to the transmission part.

[0027] In one embodiment of this application, the transmission part is provided with a magnetic suction member, and the mating member is configured to move to a first position in a direction away from the cover plate under the magnetic force provided by the magnetic suction member, so that the heat dissipation duct communicates with the inner cavity through the heat dissipation port.

[0028] According to a third aspect of the embodiments of this application, a cleaning device is provided, including the floor brush device described in the second aspect of this application.

[0029] According to a fourth aspect of the embodiments of this application, a driving component is provided, including:

[0030] The drive mechanism includes a motor body and a motor housing sleeved on the outside of the motor body; a heat dissipation duct is provided in the motor housing, and a cover plate is provided at one end of the motor housing, the cover plate having a heat dissipation opening communicating with the heat dissipation duct; the cover plate has a cover plate surface facing away from the motor body.

[0031] A mating component is movably mounted on the drive mechanism; the mating component has a mating body extending axially along the drive assembly, and a pressing portion disposed on the mating body and facing the cover plate, the pressing portion having a pressing surface facing the drive mechanism; the mating component is configured to move to abut against the cover plate, such that the pressing surface abuts against the cover plate surface to seal the heat dissipation port.

[0032] In one embodiment of this application, an elastic member is provided between the mating member and the driving mechanism. The mating member is configured to move to a first position in a direction away from the driving mechanism under the action of an external force, and to move to a second position in a direction close to the driving mechanism under the action of the elastic member after the external force is removed.

[0033] When in the first position, the mating component separates from the cover plate to open the heat dissipation vent;

[0034] When in the second position, the pressing surface abuts against the cover plate surface to seal the heat dissipation port.

[0035] In one embodiment of this application, the mating member is provided with a ferromagnetic part, which is configured to drive the mating member to move away from the cover plate to a first position under the action of magnetic force.

[0036] This application provides a drive component that can balance heat dissipation and waterproofing of the drive mechanism. Specifically, when the mating part moves to the first position under the action of external force, the heat dissipation port opens, thereby connecting the heat dissipation air duct in the drive mechanism for heat dissipation; after the external force is removed, the mating part can move to the second position under the action of the elastic member, and the heat dissipation port is sealed, thereby preventing liquid from entering the drive mechanism from the heat dissipation port and avoiding short circuit of the drive mechanism when exposed to water.

[0037] Furthermore, this application also provides a floor brush device including the aforementioned drive assembly, wherein a cleaning unit is detachably mounted on the drive assembly. In the normal operating state of the floor brush device, the cleaning unit is mounted on the drive assembly and can rotate under the drive of the drive assembly, thereby achieving the function of cleaning the working surface. The cleaning unit mounted on the drive mechanism can drive the mating component to move and remain in a first position, thereby achieving the heat dissipation function. When the user disassembles the cleaning unit for cleaning, due to the removal of the external force from the cleaning unit, the mating component moves to a second position, thereby achieving the waterproof function.

[0038] The mating component of this application seals the heat dissipation vent by abutting against the cover plate, and the vent can only be opened by moving in a direction away from the drive mechanism. When the user rinses the drive assembly, the mating component remains in the second position under the impact of the water flow. Regardless of the direction of rinsing, the water flow will not exert a force on the mating component to move away from the drive mechanism. The drive assembly of this application can effectively withstand the impact of the water flow during user rinsing, and the sealing structure can maintain an effective seal during rinsing, thereby preventing liquid from entering the drive mechanism from the heat dissipation vent and causing a short circuit. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of a cleaning device provided in one embodiment of this application;

[0040] Figure 2 This is an exploded view of a cleaning device provided in an embodiment of this application;

[0041] Figure 3 This is a cross-sectional view of a cleaning device in a disassembled state according to an embodiment of this application;

[0042] Figure 4 yes Figure 3 A magnified view of the location of the mating parts;

[0043] Figure 5 This is a cross-sectional view of a cleaning device in the installation state of a cleaning unit according to an embodiment of this application;

[0044] Figure 6 yes Figure 5 A magnified view of the location of the mating parts;

[0045] Figure 7 This is a partially enlarged view of the mating component in the second position according to an embodiment of this application;

[0046] Figure 8 This is a partially enlarged view of the mating component provided in an embodiment of this application when it is in the first position;

[0047] Figure 9 This is an exploded view of the drive assembly and cleaning unit provided in an embodiment of this application.

[0048] Figures 1 to 9 The one-to-one correspondence between the component names and the reference numerals in the figures is as follows:

[0049] 100. Drive assembly; 101. Fixed end; 102. Mounting end; 1. Drive mechanism; 10. Output shaft; 11. Motor body; 12. Motor housing; 13. Reducer; 2. Heat dissipation duct; 3. Cover plate; 30. Cover plate surface; 31. Heat dissipation vent; 4. Mating part; 40. Mating body; 41. Pressing part; 410. Pressing surface; 42. Spline; 5. Elastic part; 6. Limiting part; 200. Cleaning unit; 201. Inner cavity; 202. Transmission part; 203. Magnetic suction part; 204. Mounting bracket; 300. Floor brush housing. Detailed Implementation

[0050] Many specific details are set forth in the following description to provide a full understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this application; therefore, this application is not limited to the specific embodiments disclosed below.

[0051] The terminology used in one or more embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the scope of one or more embodiments of this application. The singular forms “a,” “the,” and “the” used in one or more embodiments of this application and in the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” used in one or more embodiments of this application refers to and includes any or all possible combinations of one or more associated listed items.

[0052] It should be understood that although the terms first, second, etc., may be used to describe various information in one or more embodiments of this application, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first may also be referred to as second without departing from the scope of one or more embodiments of this application, and similarly, second may also be referred to as first. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0053] It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application.

[0054] Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0055] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0056] This application provides a drive component, a floor brush device, and a cleaning device, wherein the cleaning device includes the floor brush device, and the floor brush device includes the drive component. The specific structure and working principle of the cleaning device provided by this application will be described in detail below, and the specific structure and working principle of the floor brush device and drive component provided by this application will also be introduced.

[0057] This application provides a cleaning device, which can be a handheld cleaning device, such as a handheld cleaning machine, a handheld floor scrubber, a handheld fabric cleaning machine, or other handheld cleaning devices well known to those skilled in the art. It can also be a mopping robot, a sweeping and mopping robot, or other self-moving cleaning devices used to clean floors, sofas, carpets, and other work surfaces that require cleaning. In the embodiment where the cleaning device is a handheld floor scrubber, the user can push the scrubber across the floor and use its floor brush device to clean the work surface.

[0058] The cleaning equipment includes a main body and a floor brush unit connected to the bottom of the main body. The floor brush unit is used to clean work surfaces such as floors, carpets, or furniture surfaces. In embodiments where the cleaning equipment is handheld, a handheld part can also be provided on the top of the main body. When using the handheld cleaning equipment, the user can push and pull the handheld part to move it and use the floor brush unit to clean the work surface. The floor brush unit is rotatably connected to the main body, allowing the user to flexibly push and pull the cleaning equipment back and forth, and enabling the main body to switch between upright and tilted positions. When the main body is tilted, the cleaning equipment can clean the work surface, and the floor brush unit can maintain contact with the work surface, thereby achieving the purpose of cleaning dirt from the work surface.

[0059] The cleaning equipment may include a walking mechanism for the equipment to move and perform cleaning work. The walking mechanism may be wheels mounted on a floor brush device, which allow the cleaning equipment to move on the work surface by a forward or backward pushing force applied by the user; or, when the cleaning equipment of this application is a cleaning robot, it may move on the work surface under its own driving force. This document does not specifically limit other structures besides the floor brush device; those skilled in the art can select appropriate components based on existing technology.

[0060] refer to Figure 1 and Figure 2The floor brush device includes a floor brush housing 300, a drive assembly 100, and a cleaning unit 200. The floor brush housing 300 can serve as the mounting base for other components of the floor brush device. The two opposite ends of the drive assembly 100 in the axial direction are respectively designated as the fixed end 101 and the mounting end 102. (Refer to...) Figure 3 In the view, the left end of the drive component 100 is the fixed end 101 and the right end is the mounting end 102. The fixed end 101 of the drive component 100 is connected to the floor brush housing 300.

[0061] The cleaning unit 200 is detachably mounted to the drive assembly 100 and is configured to rotate around its axis under the drive of the drive assembly 100 to clean the work surface. Specifically, the cleaning unit 200 can be a roller or a brush. Cleaning elements can be provided on the surface of the cleaning unit 200. The cleaning elements can be made of materials with a certain degree of water absorption, such as flocked fibers, flannel, or cleaning cotton, so that the cleaning elements can absorb cleaning liquid. This allows the cleaning unit 200 to wet-mop the work surface during rotation, thereby achieving a better cleaning effect.

[0062] refer to Figure 2 , Figure 5 and Figure 9 The cleaning unit 200 has an inner cavity 201 and an open end communicating with the inner cavity 201. When assembling the cleaning unit 200 to the drive assembly 100, the mounting end 102 of the drive assembly 100 needs to extend into the inner cavity 201 through the open end, thereby fitting the cleaning unit 200 onto the drive assembly 100. The cleaning unit 200 enables a transmission connection between the drive assemblies 100, allowing the drive assembly 100 to drive the cleaning unit 200 to rotate during operation. Figure 2 As shown, a mounting bracket 204 can be provided on the side of the cleaning unit 200 away from the opening end, and the cleaning unit 200 is rotatably connected to the mounting bracket 204. After the cleaning unit 200 and the drive assembly 100 are assembled in place, the user can use a quick-release structure (such as a snap-fit) to assemble the mounting bracket 204 onto the floor brush housing 300, thereby fixing the end of the cleaning unit 200 away from the drive assembly 100 and preventing the cleaning unit 200 from accidentally detaching from the drive assembly 100 during rotation.

[0063] After using the cleaning equipment for a period of time, the cleaning components on the surface of the cleaning unit 200 are prone to wear. At this point, the user can remove the cleaning unit 200 from the drive assembly 100 and replace it with a new one. When disassembling the cleaning unit 200, the user needs to first unlock the mounting bracket 204 from the floor brush housing 300, and then remove the cleaning unit 200 away from the drive assembly 100. After disassembly, the user can clean the drive assembly 100 and the dirt-trapping gaps between the drive assembly 100 and the floor brush housing 300. During the cleaning process, because the drive assembly is exposed, liquid may enter the drive assembly, causing a short circuit in the motor. To solve the above problems, this application incorporates a waterproof sealing design for the drive assembly, while also considering the heat dissipation design of the drive assembly 100.

[0064] refer to Figure 3 The drive assembly provided in this application includes a drive mechanism 1 and a mating component 4. The drive mechanism 1 can be a drive motor, and the mating component 4 can be a coupler that is drively connected to the drive mechanism 1. The mating component 4 can be used to drive the cleaning unit 200 to rotate relative to the floor brush housing 300. The drive mechanism 1 can be fixedly mounted on the floor brush housing 300, and the mating component 4 can be drively connected to the end of the drive mechanism 1 away from the floor brush housing 300, thereby forming the mounting end 102 of the drive assembly 100.

[0065] In one embodiment of this application, reference is made to Figure 5 and Figure 9 A transmission part 202 is provided in the inner cavity 201 of the cleaning unit 200 for engaging with the mating part 4. The mating part 4 is configured to extend into the inner cavity 201 through its open end and is connected to the transmission part 202 in a driving manner. In the assembled state, the transmission part 202 can be sleeved on the mating part 4, and the two can be engaged by a keyway structure. Figure 7 As shown, the mating part 4 may have a mating body 40 extending axially along the drive assembly 100. A spline 42 may be provided on the surface of the mating body 40. A slot for mating with the spline 42 may be provided on the inner wall of the transmission part 202. When assembling the cleaning unit 200, the transmission part 202 can be inserted into the mating body 40 in the axial direction. The mating body 40 extends into the interior of the transmission part 202, and the spline 42 extends into the slot, thereby forming a transmission connection. The drive mechanism 1 drives the transmission part 202 to rotate through the mating part 4, thereby driving the cleaning unit 200 to rotate.

[0066] refer to Figure 3 and Figure 4The drive mechanism 1 has a heat dissipation duct 2, and a cover plate 3 is provided at one end of the drive mechanism 1. The cover plate 3 has a heat dissipation port 31 that communicates with the heat dissipation duct 2. The end of the drive assembly 100 away from the cover plate 3 is connected to the floor brush housing 300. The cover plate 3 can be positioned between the drive mechanism 1 and the mating part 4. Specifically, the cover plate 3 can be fixedly installed on the drive mechanism 1 at the end adjacent to the mounting end 102. The heat generated by the drive mechanism 1 during operation can be discharged through the heat dissipation duct 2 and the heat dissipation port 31, thereby preventing the motor from overheating.

[0067] The mating component 4 is movably mounted on the drive mechanism 1. An elastic element 5 is provided between the mating component 4 and the drive mechanism 1. The mating component 4 is configured to move relative to the cover plate 3 between a first position and a second position. Specifically, the mating component 4 is configured to move to the first position in a direction away from the drive mechanism 1 under the action of an external force, and to move to the second position in a direction closer to the drive mechanism 1 under the action of the elastic element 5 after the external force is removed. Figure 6 and Figure 8 As shown, when in the first position, the mating part 4 separates from the cover plate 3 to open the heat dissipation vent 31; as Figure 4 and Figure 7 As shown, when in the second position, the mating part 4 abuts against the cover plate 3 to seal the heat dissipation port 31. Specifically, the elastic member 5 can apply an elastic force to the mating part 4 to maintain it in the second position. Under the action of external force, the mating part 4 can overcome the elastic force and move and remain in the first position; after the external force is removed, the mating part 4 can automatically reset and remain in the second position under the action of the elastic member 5.

[0068] When the mating part 4 is in the first position separated from the cover plate 3, the heat dissipation vent 31 is open, allowing external airflow to flow into the heat dissipation vent 31 through the gap between the mating part 4 and the cover plate 3, and then into the heat dissipation duct 2, thereby carrying away the heat of the drive mechanism 1 and achieving a heat dissipation effect. When the mating part 4 is in the second position abutting against the cover plate 3, there is no gap between the mating part 4 and the cover plate 3, and the heat dissipation vent 31 is sealed. At this time, the drive assembly 100 has good waterproof performance. Even if the drive assembly 100 is directly rinsed, no water will flow into the heat dissipation duct 2, thereby preventing the drive mechanism 1 from short-circuiting when exposed to water.

[0069] When the user is rinsing, refer to Figure 2 , Figure 3 and Figure 4 If the water is rinsed from the right side of the drive mechanism 1, the water flow will impact the mating part 4, making the mating part 4 fit more tightly with the cover plate 3, resulting in a better waterproof seal. If the water is rinsed from the left side of the drive mechanism 1, part of the water flow will be blocked by the drive mechanism 1 and the cover plate 3. The remaining small amount of water flow impacts the mating part 4, which is not enough to overcome the elastic force and open the mating part 4, thus still achieving a waterproof seal.

[0070] This application provides a drive assembly 100 that combines heat dissipation and waterproofing of the drive mechanism 1. Specifically, when the mating part 4 (e.g., a coupler) moves to a first position under external force, the heat dissipation port 31 opens, thereby connecting to the heat dissipation duct 2 in the drive mechanism 1 for heat dissipation. After the external force is removed, the mating part 4 can move to a second position under the action of the elastic member 5, and the heat dissipation port 31 is sealed, thereby preventing liquid from entering the drive mechanism 1 from the heat dissipation port 31 and avoiding short circuits caused by water. In this application, the mating part 4 seals the heat dissipation port 31 by abutting against the cover plate 3, and the heat dissipation port 31 can only be opened by moving in a direction away from the drive mechanism 1. When the user washes the drive assembly 100, the mating part 4 can still remain in the second position under the impact of water flow. No matter which direction the washing is performed, the water flow will not exert a force on the mating part 4 to move away from the drive mechanism 1. The drive assembly 100 of this application can effectively cope with the impact of water flow when the user washes, and the sealing structure can maintain an effective seal during the washing process, thereby preventing liquid from entering the drive mechanism 1 from the heat dissipation port 31 and causing a short circuit.

[0071] Furthermore, the external force that drives the mating component 4 from the second position to the first position comes from the cleaning unit 200. When the cleaning unit 200 is assembled on the drive mechanism 1, the cleaning unit 200 is configured to drive the mating component 4 to move and remain in the first position; when the cleaning unit 200 is disengaged from the drive mechanism 1, the mating component 4 is reset to the second position under the action of the elastic member 5. Specifically, the cleaning unit 200 of this application is detachably mounted on the drive assembly 100. In the normal working state of the floor brush device, the cleaning unit 200 is mounted on the drive assembly 100 and can rotate under the driving action of the drive assembly 100, thereby realizing the function of cleaning the working surface; the cleaning unit 200 assembled on the drive mechanism 1 can drive the mating component 4 to move and remain in the first position, thereby realizing the heat dissipation function. When the user disassembles the cleaning unit 200 for cleaning, the mating component 4 moves to the second position due to the removal of the external force from the cleaning unit 200, thereby realizing the waterproof function.

[0072] When the cleaning unit 200 is assembled onto the drive mechanism 1, the cleaning unit 200 can drive the mating part 4 to move against the elastic force and maintain it in the first position, thereby opening the heat dissipation vent 31. The heat dissipation vent 31 can communicate with the inner cavity 201, so that the airflow in the inner cavity 201 can flow into the heat dissipation vent 31 through the gap between the mating part 4 and the cover plate 3, and enter the heat dissipation duct 2, thereby carrying away the heat of the drive mechanism 1 and achieving the heat dissipation effect. It can be understood that the drive mechanism 1 only needs to work to drive the cleaning unit 200 to rotate when the cleaning unit 200 is installed, that is, the heat dissipation problem of the drive mechanism 1 only exists at this time. When the cleaning unit 200 is assembled onto the drive mechanism 1, it applies a force to the mating part 4, so that the mating part 4 is kept in the first position that can open the heat dissipation vent 31, thereby solving the heat dissipation problem of the drive mechanism 1 during operation.

[0073] After the cleaning unit 200 is removed from the drive mechanism, the cleaning unit 200 is disengaged from the mating part 4, thereby removing the force applied to the mating part 4. Under the elastic force of the elastic member 5, the mating part 4 returns to the second position, thereby abutting against the cover plate 3 and sealing the heat dissipation port 31. At this time, the drive assembly 100 has good waterproof performance. The user can rinse the drive assembly 100, and the water flow will not wash away the mating part 4, so no water will enter the heat dissipation duct 2, thus avoiding short circuit of the drive mechanism 1 when exposed to water. It is understood that the drive mechanism 1 is only exposed after the cleaning unit 200 is removed, that is, only at this time is there a risk of water entering the motor; after the cleaning unit 200 is removed, the mating part 4 can be held in the second position sealing the heat dissipation port 31 under the action of the elastic member 5, thus realizing the waterproof design of the drive mechanism 1.

[0074] In one embodiment of this application, reference is made to Figure 4 and Figure 6 The drive mechanism 1 has an output shaft 10 extending through the cover plate 3. The drive mechanism 1 is configured to drive the mating component 4 to rotate synchronously via the output shaft 10. The mating component 4 is configured to guide and fit onto the output shaft 10 and to move between a first position and a second position along the axial direction of the output shaft 10. Specifically, the mating component 4 may have a mating hole extending in the axial direction, the shape of which is adapted to the cross-sectional shape of the output shaft 10. The output shaft 10 can pass through this mating hole, thereby both driving the mating component 4 to rotate and guiding it. The mating component 4 can move relative to the output shaft 10 between the first and second positions along its axial direction. It should be noted that the cross-sections of both the output shaft 10 and the mating hole are non-circular, for example, they can be flat, oblong, rectangular, prismatic, polygonal, elliptical, etc. Thus, when the output shaft 10 rotates, the inner wall of the mating hole is subjected to force, thereby driving the mating component 4 to rotate synchronously.

[0075] In one embodiment of this application, reference is made to Figure 7 and Figure 8 A limiting member 6 is provided at the end of the output shaft 10. The limiting member 6 is configured to restrict the degree of freedom of movement of the mating member 4 in the direction away from the drive mechanism 1. The two extreme positions of the mating member 4 in the axial direction of the output shaft 10 are the first position and the second position, and the space in which it can move is the area between the cover plate 3 and the limiting member 6. Specifically, the limiting member 6 can be a screw installed at the end of the output shaft 10, the size of which in the radial direction exceeds the size of the mating hole on the mating member 4. This ensures that the mating member 4, in the process of moving in the direction away from the drive mechanism 1, can only move to the position of abutting the screw head at most, and cannot continue to move in the direction away from the drive mechanism 1.

[0076] Furthermore, the elastic element 5 is a spring pre-compressed between the limiting element 6 and the mating element 4. One end of the spring abuts against the end face of the mating element 4 away from the cover plate 3, and the other end abuts against the end face of the limiting element 6 facing the mating element 4. When the mating element 4 is not subjected to external force, the elastic element 5 maintains the pre-compressed state and applies an elastic force towards the driving mechanism 1 to the mating element 4. The mating element 4 can abut against the cover plate 3 under the action of the elastic element 5, thereby maintaining the second position and achieving a sealing and waterproof function. When subjected to a force from the cleaning unit 200, the mating element 4 can move to the first position in the direction away from the driving mechanism 1 under the action of the external force. During this process, the elastic element 5 is compressed and deformed, accumulating elastic force. When the cleaning unit 200 is removed, the external force on the mating element 4 is removed, and the elastic element 5 can release its accumulated elastic force, thereby driving the mating element 4 to return to the second position.

[0077] In one embodiment of this application, a through hole for the output shaft 10 to pass through is provided at the end of the mating member 4 away from the cover plate 3, and a limiting member 6 is installed at the end through which the output shaft 10 passes. A sealing member can be provided between the through hole and the output shaft 10, and the sealing member abuts against the outer wall of the output shaft 10 and the inner wall of the through hole. Further, the sealing member can extend to the position between the mating member 4 and the elastic member 5, thereby achieving a complete seal on the through hole of the mating member 4. When the user rinses the drive assembly 100, the sealing member can play a waterproof role, thereby preventing liquid from flowing into the mating member 4 from the through hole and seeping into the drive mechanism 1 along the output shaft 10, causing a short circuit in the motor, and effectively improving the waterproof performance. In one embodiment of this application, a ferromagnetic part is provided on the mating member 4, and the ferromagnetic part is configured to drive the mating member 4 to move away from the cover plate 3 to a first position under the action of magnetic force. Specifically, the mating member 4 can be at least partially made of ferromagnetic material, or parts made of ferromagnetic material can be installed on the mating member 4. Correspondingly, such as Figure 6As shown, a magnetic suction member 203 is provided on the transmission part 202. The magnetic suction member 203 can be a magnet. The mating part 4 is configured to move to a first position away from the cover plate 3 under the magnetic force provided by the magnetic suction member 203, so that the heat dissipation air duct 2 can be connected to the inner cavity 201 through the heat dissipation port 31.

[0078] In the assembled state, the transmission part 202 can be sleeved on the mating part 4. The magnetic suction member 203 provided on the transmission part 202 is located on the side of the mating part 4 away from the cover plate 3. The magnetic suction member 203 can attract the ferromagnetic part on the mating part 4. Under the action of magnetic force, the ferromagnetic part can drive the mating part 4 to move away from the drive mechanism 1 to the first position, thereby separating from the cover plate 3 and opening the heat dissipation vent 31, thus achieving the function of heat dissipation. It should be noted that when the cleaning unit 200 is assembled, the mating part 4 moves towards the magnetic suction member 203 to the first position. At this time, the magnetic suction member 203 is still located on the side of the mating part 4 away from the cover plate 3, thereby continuously providing magnetic force to the mating part 4. This ensures that as long as the cleaning unit 200 is in the installed state, the mating part 4 can remain in the first position with the heat dissipation vent 31 open. When the cleaning unit 200 is removed from the drive assembly 100, since the magnetic suction member 203 disappears, the mating part 4 is no longer subjected to external force, so it can be reset to the second position under the action of the elastic member 5, thereby sealing the heat dissipation vent 31.

[0079] In one embodiment of this application, reference is made to Figure 3 and Figure 9 The drive mechanism 1 includes a motor body 11 and a motor housing 12 sleeved on the outside of the motor body 11. A cover plate 3 can be disposed at one end of the motor housing 12. The motor body 11 can be located inside the motor housing 12 on a side relatively away from the cover plate 3. In the first position, the mating part 4 is configured to be relatively away from the motor body 11, and in the second position, the mating part 4 is configured to be relatively close to the motor body 11. The drive mechanism 1 may also include a reducer 13, which is connected to the drive mechanism 1 in a transmission manner. An output shaft 10 can be disposed on the reducer 13. The motor body 11 can transmit torque to the reducer 13, and then from the output shaft 10 of the reducer 13 through the mating part 4 to the cleaning unit 200, thereby driving the cleaning unit 200 to rotate. The motor housing 12 can be fitted not only on the outside of the motor body 11, but also on the outside of the reducer 13, thereby housing the motor body 11 and the reducer 13 as a whole inside the motor housing 12. Only the output shaft 10 passes through the cover plate 3 provided at the end of the motor housing 12, and is connected to the mating part 4.

[0080] The heat dissipation duct 2 is formed at least by the gap between the motor housing 12 and the motor body 11, and may also include at least the gap between the motor housing 12 and the reducer 13. A cover plate 3 may be disposed at one end of the motor housing 12, and a heat dissipation vent 31 on the cover plate 3 may connect to the interior of the motor housing 12. The motor body 11 generates heat when driving the cleaning unit 200 to rotate. The heat dissipation duct 2 surrounds the outer periphery of the motor body 11 and connects to the heat dissipation vent 31. Thus, when the heat dissipation vent 31 is open (i.e., when the mating part 4 is in the first position), the heat from the motor body 11 can be dissipated through the heat dissipation duct 2 and the heat dissipation vent 31.

[0081] In one embodiment of this application, the cover plate 3 is constructed to be made of a soft rubber material. The soft rubber material has good waterproof performance. When the mating part 4 is in the second position, the mating part 4 abuts against the cover plate 3. The soft rubber cover plate 3 will deform under the abutment, thereby enabling the mating part 4 to achieve a stronger sealing effect and avoiding sealing failure due to wear of the cover plate 3.

[0082] In one embodiment of this application, reference is made to Figure 4 , Figure 7 and Figure 8 The mating part 4 has a pressing portion 41 on the side facing the cover plate 3. When in the second position, at least a portion of the pressing portion 41 is configured to abut against the cover plate 3 to seal the heat dissipation vent 31. The position on the mating part 4 for abutting against the cover plate 3 is the pressing portion 41. Specifically, the pressing portion 41 can be configured to extend radially outward from the edge of the mating body 40. Figure 6 and Figure 8 As shown, the cover plate 3 has a cover plate surface 30 facing away from the motor body 11, and the pressing part 41 has a pressing surface 410 facing the drive mechanism 1. When the mating part 4 moves to the second position abutting against the cover plate 3, the pressing surface 410 abuts against the cover plate surface 30, thereby sealing the heat dissipation port 31. The pressing part 41, as a structure specifically designed for sealing, can be adapted to the shape of the cover plate 3. In this application, the cover plate 3 is located at one end of the motor housing 12, and its shape can be correspondingly set to approximately circular or annular. Therefore, the shape of the pressing part 41 on the mating part 4 can be correspondingly set to extend radially outward from the edge to form an annular structure, thereby forming a large-area, uniform abutment with the corresponding area on the cover plate 3, improving the stability of the seal. Compared with the mating part 4 directly abutting against the cover plate 3, the pressing part 41 can fit more precisely with the cover plate 3, eliminating sealing gaps as much as possible, effectively preventing liquid from entering the drive assembly 100, and enhancing the protection performance of the drive mechanism 1.

[0083] In one specific embodiment of this application, the heat dissipation port 31 includes at least a first heat dissipation hole disposed in the middle region of the cover plate 3. The output shaft 10 is configured to pass through the first heat dissipation hole for transmission connection with the mating part 4. The pressing part 41 is configured to mate with the end face of the cover plate 3 located outside the first heat dissipation hole. In this embodiment, the cover plate 3 is configured as annular, and the opening in the middle region of the annulus is the first heat dissipation hole. The pressing part 41 only mates with the end face outside the first heat dissipation hole and does not directly contact the output shaft 10 or the hole wall of the first heat dissipation hole. Therefore, it will not affect the rotational accuracy of the output shaft 10 and ensures that the transmission performance of the drive mechanism 1 is not interfered with by the sealing structure. This application utilizes the end face outside the first heat dissipation hole as the sealing mating surface, thereby making full use of the existing structural space of the cover plate 3, eliminating the need for additional processing of complex sealing grooves or protrusions, simplifying the structure of the cover plate 3, and reducing production costs.

[0084] In another specific embodiment of this application, the heat dissipation port 31 includes at least a plurality of second heat dissipation holes distributed in the circumferential direction of the end face of the cover plate 3. The pressing part 41 is configured to abut against the position of the second heat dissipation holes to seal them. The plurality of second heat dissipation holes are distributed along the circumferential direction of the cover plate 3 on its end face, thereby achieving multi-hole heat dissipation when the heat dissipation port 31 is open, improving the heat dissipation efficiency of the drive mechanism 1. As mentioned above, the pressing part 41 extends radially outward from the edge of the mating member 4, and its shape can simultaneously abut against each of the second heat dissipation holes, avoiding sealing omissions caused by the dispersion of hole positions, and ensuring sealing performance in the non-heat dissipation state.

[0085] In another specific embodiment of this application, the heat dissipation port 31 includes at least a plurality of third heat dissipation holes distributed on the circumferential sidewall of the cover plate 3. The pressing part 41 is constructed as a sleeve structure extending in the axial direction. The sleeve structure is constructed to fit over the outer side of the cover plate 3 so that its inner wall abuts against the third heat dissipation holes. Specifically, the plurality of third heat dissipation holes are distributed on the circumferential sidewall of the cover plate 3, thereby achieving multi-hole heat dissipation when the heat dissipation port 31 is open, improving the heat dissipation efficiency of the drive mechanism 1. In this embodiment, the pressing part 41 is set as a sleeve structure. It can be understood that the sleeve structure has a radial dimension slightly larger than that of the cover plate 3 and a certain axial dimension. Thus, when the mating part 4 is in the second position, the sleeve structure can fit over the outer side of the cover plate 3 and cover all the third heat dissipation holes. The inner wall of the sleeve structure can simultaneously abut against each of the third heat dissipation holes, thereby avoiding sealing omissions caused by the dispersion of hole positions and ensuring sealing performance in the non-heat dissipation state.

[0086] In one embodiment of this application, the diameter of the cover plate 3 is greater than or equal to the diameter of the pressing part 41, so that the cover plate 3 can act as a water barrier when the user rinses the room. (See reference) Figure 4In the view direction, when the flushing water flow comes from the right, the water flow impacts the mating part 4, making the pressing part 41 fit more tightly with the cover plate 3, and the waterproof seal is better; when the flushing water flow comes from the left, since the diameter of the cover plate 3 is not less than the diameter of the pressing part 41, part of the water flow can be blocked by the cover plate 3, and the remaining small amount of water flow impacts the mating part 4, which is not enough to overcome the elastic force to push the mating part 4 open, and the pressing part 41 can still maintain contact with the cover plate 3, and the waterproof seal can still be achieved.

[0087] This disclosure also provides a drive assembly 100, including a drive mechanism 1 and a mating member 4. The drive mechanism 1 includes a motor body 11 and a motor housing 12 sleeved on the outside of the motor body 11. A heat dissipation duct 2 is provided in the motor housing 12, and a cover plate 3 is provided at one end of the motor housing 12. The cover plate 3 has a heat dissipation port 31 communicating with the heat dissipation duct 2. The cover plate 3 has a cover plate surface 30 facing away from the motor body 11. The mating member 4 is movably mounted on the drive mechanism 1. The mating member 4 has a mating body 40 extending axially along the drive assembly 100, and a pressing part 41 provided on the mating body 40 and facing the cover plate 3. The pressing part 41 has a pressing surface 410 facing the drive mechanism 1. The mating member 4 is configured to move to abut against the cover plate 3, so that the pressing surface 410 abuts against the cover plate surface 30 to seal the heat dissipation port 31. The maximum diameter of the cover plate surface 30 is not less than the maximum diameter of the pressing surface 410. Therefore, when the user is rinsing, the cover plate 3 can act as a water barrier, and the water flow will not directly impact the pressing surface 410. This ensures that the pressing part 41 can maintain contact with the cover plate 3, thus achieving a waterproof seal.

[0088] Specifically, when the user removes the cleaning unit 200 and rinses the drive assembly 100, such as Figure 4 As shown, if the water flow comes from the right, it can only wash the mating body 40 or the side of the pressing part 41 facing away from the pressing surface. This results in the water flow scouring force acting on the mating part 4 towards the drive mechanism 1, allowing the mating part 4 to abut more tightly against the cover plate 3. If the water flow comes from the left, since the maximum diameter of the cover plate surface 30 is not less than the maximum diameter of the pressing surface 410, a portion of the water flow can be blocked by the cover plate 3. The remaining small amount of water impacting the mating part 4 is insufficient to overcome the elastic force and open the mating part 4. The pressing part 41 can still maintain contact with the cover plate 3, thus achieving a waterproof seal. The drive assembly 100 of this application can effectively withstand the water flow impact during user rinsing. Under the impact of the water flow, the pressing surface can better maintain contact with the cover plate surface 30, thereby ensuring the sealing structure remains effectively sealed during rinsing and preventing liquid from entering the drive mechanism 1 from the heat dissipation port 31, which could cause a short circuit.

[0089] Application scenarios

[0090] In home use, the cleaning equipment can be a handheld floor scrubber. When using a handheld floor scrubber, the user can push it across the floor and use the floor brush to clean the work surface. The floor brush includes a brush housing 300, a drive assembly 100, and a cleaning unit 200. The drive assembly 100 is fixedly connected to the brush housing 300, and the cleaning unit 200 is detachably installed on the drive assembly 100.

[0091] When assembling the cleaning unit 200 onto the drive assembly 100, the mounting end 102 of the drive assembly 100 needs to extend into the inner cavity 201 through its open end, thereby fitting the cleaning unit 200 onto the drive assembly 100. The cleaning unit 200 can form a transmission connection between the drive assemblies 100, and the drive assembly 100 can drive the cleaning unit 200 to rotate during operation. Specifically, the mounting end 102 of the drive assembly 100 is provided with a mating member 4, and the inner cavity 201 of the cleaning unit 200 is provided with a transmission part 202 for mating with the mating member 4. The mating member 4 is configured to extend into the inner cavity 201 through its open end and be transmissionally connected to the transmission part 202.

[0092] In the assembled state, the transmission part 202 is sleeved on the mating part 4. The magnetic attractor 203 provided on the transmission part 202 is located on the side of the mating part 4 away from the cover plate 3. The magnetic attractor 203 can attract the ferromagnetic part on the mating part 4. Under the action of magnetic force, the ferromagnetic part can drive the mating part 4 to move away from the drive mechanism 1 to the first position, thereby separating from the cover plate 3 and opening the heat dissipation vent 31. The airflow in the inner cavity 201 can flow into the heat dissipation vent 31 through the gap between the mating part 4 and the cover plate 3, and enter the heat dissipation duct 2, thereby carrying away the heat of the drive mechanism 1 and achieving the heat dissipation effect.

[0093] After using the cleaning equipment for a period of time, the cleaning components on the surface of the cleaning unit 200 are prone to wear. At this time, the user can remove the cleaning unit 200 from the drive assembly 100 and replace it with a new one. When the cleaning unit 200 is removed from the drive assembly 100, due to the disappearance of the magnetic attraction 203, the mating part 4 is no longer subjected to external force, so it can be reset to the second position under the action of the elastic part 5, thereby sealing the heat dissipation port 31.

[0094] When the user rinses the drive assembly 100, the mating part 4 remains in the second position under the impact of the water flow. No matter which direction the rinsing is performed, the water flow will not exert a force on the mating part 4 to move away from the drive mechanism 1. The drive assembly 100 of this application can effectively cope with the impact of the water flow when the user rinses it, and the sealing structure can maintain an effective seal during the rinsing process, thereby preventing liquid from entering the drive mechanism 1 from the heat dissipation port 31 and causing a short circuit.

[0095] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0096] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0097] The preferred embodiments disclosed above are merely illustrative of this application. The optional embodiments do not exhaustively describe all details, nor do they limit this application to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this application. These embodiments are selected and specifically described in this application to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to better understand and utilize this application. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A drive assembly, characterized by include: A drive mechanism is provided, wherein a heat dissipation duct is provided in the drive mechanism; a cover plate is provided at one end of the drive mechanism, and a heat dissipation port communicating with the heat dissipation duct is provided on the cover plate; the drive mechanism has an output shaft that extends out of the cover plate. A mating component is movably mounted on the drive mechanism, and an elastic element is provided between the mating component and the drive mechanism. The mating component is configured to move relative to the cover plate between a first position and a second position. The mating component is drively connected to the output shaft, and the drive mechanism is configured to drive the mating component to rotate synchronously via the output shaft. The mating component is configured to move to a first position in a direction away from the drive mechanism under the action of an external force, and to move to a second position in a direction close to the drive mechanism under the action of an elastic component after the external force is removed; When in the first position, the mating component separates from the cover plate to open the heat dissipation vent; When in the second position, the mating component abuts against the cover plate to seal the heat dissipation vent.

2. The drive assembly of claim 1, wherein, The mating component has a pressing part on the side facing the cover plate. When in the second position, at least a portion of the pressing part is configured to abut against the cover plate to seal the heat dissipation port.

3. The drive assembly of claim 2, wherein, The pressing portion is configured to extend radially outward from the edge of the mating member.

4. The drive assembly of claim 3, wherein, The heat dissipation vent includes at least a first heat dissipation hole disposed in the middle region of the cover plate, and the output shaft is configured to pass through the first heat dissipation hole for transmission connection with the mating component; the pressing part is configured to mate with the end face of the cover plate located outside the first heat dissipation hole.

5. The drive assembly of claim 3, wherein, The heat dissipation vent includes at least a plurality of second heat dissipation holes distributed in the circumferential direction of the end face of the cover plate; the pressing part is configured to abut against the position of the second heat dissipation holes to seal the second heat dissipation holes.

6. The drive assembly of claim 2, wherein, The heat dissipation vent includes at least a plurality of third heat dissipation holes distributed on the circumferential sidewall of the cover plate; the pressing part is constructed as a sleeve structure extending in the axial direction, and the sleeve structure is constructed to be fitted onto the outer side of the cover plate so that its inner wall abuts against the third heat dissipation holes.

7. The drive assembly of claim 2, wherein, The diameter of the cover plate is greater than or equal to the diameter of the pressing part.

8. The driving component according to claim 1, characterized in that, The mating component is provided with a ferromagnetic part, which is configured to drive the mating component to move away from the cover plate to a first position under the action of magnetic force.

9. The driving component according to claim 1, characterized in that, The output shaft is provided with a limiting member at its end, which is configured to restrict the degree of freedom of the mating member to move away from the drive mechanism; the elastic member is a spring preloaded between the limiting member and the mating member.

10. The drive assembly of claim 1, wherein, The drive mechanism includes a motor body and a motor housing sleeved on the outside of the motor body, with the cover plate disposed at one end of the motor housing; the heat dissipation duct is formed by at least the gap between the motor housing and the motor body; in the first position, the mating member is configured to be relatively far away from the motor body; in the second position, the mating member is configured to be relatively close to the motor body.

11. The drive assembly of claim 1, wherein, The cover is constructed from a soft rubber material.

12. A floor brush device, characterized in that, include: Floor brush housing; The drive assembly according to any one of claims 1-11, wherein one end of the drive assembly away from the cover plate is connected to the floor brush housing; A cleaning unit, detachably mounted to the drive assembly, and configured to rotate about its axis under the drive of the mating member to clean the working surface; When the cleaning unit is assembled on the drive mechanism, the cleaning unit is configured to drive the mating component to move and remain in the first position; when the cleaning unit is disengaged from the drive mechanism, the mating component is reset to the second position under the action of the elastic member.

13. The brush device of claim 12, wherein, The cleaning unit has an inner cavity and an open end communicating with the inner cavity. A transmission part for engaging with a mating part is provided in the inner cavity. The mating part is configured to extend into the inner cavity through the open end and be drive-connected to the transmission part.

14. The brush device of claim 13, wherein, The transmission part is provided with a magnetic suction element, and the mating part is configured to move to a first position in a direction away from the cover plate under the magnetic force provided by the magnetic suction element, so that the heat dissipation air duct communicates with the inner cavity through the heat dissipation port.

15. A cleaning apparatus, characterized by Includes the floor brush device according to any one of claims 12-14.

16. A drive assembly comprising: include: The drive mechanism includes a motor body and a motor housing fitted over the outside of the motor body; A heat dissipation duct is provided in the motor housing, and a cover plate is provided at one end of the motor housing. The cover plate has a heat dissipation opening that communicates with the heat dissipation duct. The cover plate has a cover plate surface facing away from the motor body. A mating component is movably mounted on the drive mechanism; the mating component has a mating body extending axially along the drive assembly, and a pressing portion disposed on the mating body and facing the cover plate, the pressing portion having a pressing surface facing the drive mechanism; the mating component is configured to move to abut against the cover plate, such that the pressing surface abuts against the cover plate surface to seal the heat dissipation port.

17. The drive assembly of claim 16, wherein, An elastic element is provided between the mating member and the driving mechanism. The mating member is configured to move to a first position in a direction away from the driving mechanism under the action of an external force, and to move to a second position in a direction close to the driving mechanism under the action of the elastic element after the external force is removed. When in the first position, the mating component separates from the cover plate to open the heat dissipation vent; When in the second position, the pressing surface abuts against the cover plate surface to seal the heat dissipation port.

18. The driving component according to claim 17, characterized in that, The mating component is provided with a ferromagnetic part, which is configured to drive the mating component to move away from the cover plate to a first position under the action of magnetic force.

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