Multifunctional electric motor

Abstract

In the field of vacuum cleaner technology, we provide multi-functional electric devices. [Solution] The system comprises a housing 1, a fan unit provided inside the housing, an airflow path component, and an airflow path switching unit 4. The airflow path component is connected to the opening of the housing and the fan unit, and includes a main plate and an intake chamber. The main plate has an intake port and an exhaust port, one side of the intake port is connected to the fan unit, and the intake airflow generated by the fan unit flows in through the intake port, and the exhaust airflow is discharged through the exhaust port. The intake chamber is provided on the other side of the intake port and has an intake port, the intake port and the intake port are non-parallel, and the intake port and the exhaust port do not overlap in the circumferential direction. The airflow path switching unit is connected to the airflow path component and achieves intake or exhaust by rotating relative to the airflow path component, effectively reducing the volume of the equipment and making the structure more compact.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric cleaners and relates to multi-functional electric devices.

Background Art

[0002] Small portable electric cleaners, as highly convenient cleaning tools, are widely applied in daily life and specific work sites. As users' demands for the diversity of functions and flexibility of use of cleaning devices increase, composite cleaning devices that integrate multiple functions such as dust suction, dust removal, and dust sending are gradually showing a development trend. This type of device can be adapted to scenarios such as the maintenance of precision electronic devices, the cleaning of desktop gaps, or the dust removal of keyboards. The dust sending mode can effectively remove dust, and the dust suction and dust removal modes are more suitable for normal surface cleaning.

[0003] However, in the prior art, in order to achieve the above-mentioned multi-functional integration, a complex internal air duct switching structure is often adopted, which increases the overall volume of the device and makes the structure redundant, to a certain extent compromising the portability and ease of operation that a handy device should have.

[0004] Therefore, efficiently integrating multiple operation modes such as dust suction and dust sending within a limited volume, simplifying the structural design, and reducing the complexity of switching are technical problems that need to be solved in the current field of small cleaning devices. There is a need to provide a small portable electric cleaner with a compact structure, rich functions, and easy operation to meet the increasing cleaning needs in various scenarios day by day.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The object of the present invention is to provide a multi-functional electric device that solves the problems of the prior art, namely, the complex structure and large volume of multi-functional cleaning devices.

Means for Solving the Problems

[0006] An embodiment of the present invention provides a multifunctional electric device. The multifunctional electric device comprises a housing, a fan unit provided inside the housing, an air passage component connected to an opening in the housing and the fan unit, and an air passage switching unit connected to the air passage component. The air passage component includes a main plate and an intake chamber, the main plate having an intake port and an exhaust port, one side of the intake port being connected to the fan unit, the intake airflow generated by the fan unit flowing in through the intake port, and the exhaust airflow generated by the fan unit being discharged through the exhaust port. The intake chamber is provided on the other side of the intake port, the intake chamber has an intake port, the intake port and the intake port are non-parallel, and the intake port and the exhaust port do not overlap in the circumferential direction. The air passage switching unit and the air passage component rotate relative to each other to achieve intake or exhaust.

[0007] Furthermore, the airflow switching unit includes a vent outer cylinder and a switching inner cylinder, and the switching inner cylinder is rotated by rotating the vent outer cylinder, the vent outer cylinder is provided with a plurality of vent holes, and the switching inner cylinder cooperates with the airflow components to form two types of gas passages in intake mode and exhaust mode, respectively. In intake mode, the first intake gas passage connects the vent holes and the exhaust port, and the second intake gas passage is connected to the intake port. In exhaust mode, the first exhaust gas passage connects the vent holes and the intake port, and the second exhaust gas passage is connected to the exhaust port.

[0008] Furthermore, the intake chamber includes the chamber sides and the chamber bottom, the intake port is located on the chamber side, and the chamber bottom includes a flat surface, an arc-shaped surface, or a conical surface.

[0009] Furthermore, the switching inner cylinder is provided with a central housing passage, the shape of which conforms to the intake chamber and houses the intake chamber, and at least one first opening and at least one second opening are provided on the side of the central housing passage, and the first opening or the second opening is connected opposite to the intake port. A radially extending first bottom plate is formed on the outer circumference of one side of the first opening that is close to the bottom surface of the chamber, and an axially oriented first passage is provided outside the second opening, and the first passage includes a first passage main plate coaxial with the second opening and a first passage side plate connected to the central housing passage.

[0010] Furthermore, in intake mode, the second opening is connected opposite to the intake port, the main body plate and the first passage constitute the second intake gas passage, and the first bottom plate, the first passage side plate and the chamber side surface constitute the first intake gas passage. In exhaust mode, the first opening is connected opposite to the intake port, the first bottom plate and the first passage side plate constitute the first exhaust gas passage, and the first passage and the chamber side surface constitute the second exhaust gas passage.

[0011] Furthermore, a recess exists around the suction port on the side surface of the chamber, a step exists between the side surface of the chamber, the suction port, and the bottom surface of the chamber, and a flexible sealing member is provided in the recess and the step.

[0012] Furthermore, the unit includes an air collection component, which is mounted on one side of the airflow switching unit away from the airflow component, and the air collection component is connected to the airflow component.

[0013] Furthermore, the air collection component includes an air collection housing and a hollow connecting member, the central air hole is provided in the axial part of the air collection housing, the hollow connecting member is mounted inside the air collection housing, and the hollow connecting member is connected to the bottom surface of the chamber.

[0014] Furthermore, the bottom surface of the chamber is provided with a connecting recess or a connecting protrusion, and the hollow connecting member is connected to the connecting recess or connecting protrusion.

[0015] Furthermore, the air collection component is provided with an air vent passage, and the air vent passage extends axially from the central air vent toward one side away from the airflow switching unit.

[0016] Furthermore, the system includes an air collection component, which is mounted on one side of the airflow switching unit away from the airflow component, and the air collection component is connected to the airflow switching unit.

[0017] Furthermore, it is equipped with a dust collection unit, the dust collection unit including a dust cup and a HEPA filter, the HEPA filter being installed inside the dust cup.

[0018] Furthermore, the dust cup includes a cup body and a front cap for the mouthpiece, and the cup body and the front cap for the mouthpiece are detachably connected.

[0019] Furthermore, the dust cup is equipped with a front lid button, which controls the opening and closing of the front lid of the suction nozzle.

[0020] Furthermore, it is equipped with a blower nozzle.

[0021] Furthermore, the housing includes a handle.

[0022] Furthermore, it is equipped with a battery unit, which is mounted inside the handle portion.

[0023] Furthermore, a charging interface is provided on the handle portion. [Effects of the Invention]

[0024] Embodiments of the present invention have at least the following technical effects. In the multifunctional electric device provided by the embodiment of the present invention, the fan unit is arranged inside the housing, the air duct component is connected to the opening of the housing and the fan unit, both the intake and exhaust pass through the air duct component, and the air flow does not flow out from other parts of the housing. The air duct component includes a main body plate and an intake chamber. The main body plate is connected to the housing. One side of the intake port is connected to the fan unit. Gas flows into the fan unit from the intake port, and the gas discharged from the fan unit flows out from the exhaust port. The intake chamber has a suction port. The suction port and the intake port are non-parallel, and the suction port and the exhaust port do not overlap in the circumferential direction, and the suction port and the exhaust port are not on the same plane. The intake air flow needs to first flow into the suction port and then reach the intake port. The air duct switching unit is connected to the air duct component. The air duct switching unit and the air duct component rotate relative to each other to realize the intake or exhaust mode. In the intake mode, dust collection is possible. In the exhaust mode, dust blowing or hair styling, etc. are possible, and the functions of the device are diverse. Also, the length of the air duct switching unit in the axial direction can be at least the length of the intake chamber in the axial direction. The suction port and the exhaust port that are not on the same plane are advantageous in changing the flow direction of the air flow in cooperation with the air duct switching unit, greatly shortening the length of the air duct switching unit, effectively reducing the volume of the device, and making the structure of the device more compact.

Brief Description of the Drawings

[0025] To more clearly explain the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the following description of the specific embodiments or the prior art will be briefly described. Although it is self-evident, the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative labor.

[0026] [Figure 1] External appearance schematic diagram showing the dust collection state of the multifunctional electric device according to the embodiment of the present invention; [Figure 2] Schematic diagram showing the dust cup dust collection mode of the multifunctional electric device according to the embodiment of the present invention; [Figure 3]A schematic diagram showing the dust supply state of a multi-functional electric device according to an embodiment of the present invention; [Figure 4] A schematic cross-sectional view showing the dust collection state of a multi-functional electric device according to an embodiment of the present invention; [Figure 5] An exploded view showing the axial assembly relationship of a part of the structure in the intake mode according to an embodiment of the present invention; [Figure 6] A schematic cross-sectional view of the dust cup dust removal mode of a multi-functional electric device according to an embodiment of the present invention; [Figure 7] An exploded view showing the axial assembly relationship of a part of the structure in the exhaust mode according to an embodiment of the present invention; [Figure 8] Schematic diagram of the three-dimensional structure of an air duct component according to an embodiment of the present invention; [Figure 9] A schematic diagram of an air duct component according to an embodiment of the present invention, viewed from an upward angle; [Figure 10] Schematic diagram of the three-dimensional structure of the switching inner cylinder according to an embodiment of the present invention; [Figure 11] Schematic diagram of the three-dimensional structure of a second air passage component according to an embodiment of the present invention; [Figure 12] Schematic diagram of the three-dimensional structure of the second switching inner cylinder according to an embodiment of the present invention; [Figure 13] A schematic diagram of the three-dimensional structure of an air collection component according to an embodiment of the present invention. [Explanation of Symbols]

[0027] 1: Housing; 2: Fan unit; 3: Airflow components; 4: Airflow switching unit; 5: Air collection components; 6: Dust collection unit; 7: Air blower nozzle; 8: Battery unit; 11: Handle section; 31: Main body plate; 32: Intake chamber; 41: Ventilation outer cylinder; 42: Switching inner cylinder; 51: Air collection housing; 52: Hollow connecting member; 53: Air vent passage; 61: Dust cup; 62: HEPA filter; 311: Intake port; 312: Exhaust port; 32 1: Chamber side; 322: Chamber bottom; 323: Step; 411: Ventilation hole; 422: First bottom plate; 423: First passage; 511: Central air vent; 611: Cup body; 612: Front lid of suction nozzle; 613: Front lid button; 3211: Inlet; 3212: Side recess; 3221: Connection recess; 3222: Connection protrusion; 4211: First opening; 4212: Second opening; 4231: Main plate of the first passage; 4232: Side plate of the first passage. [Modes for carrying out the invention]

[0028] The technical solutions of the present invention will be clearly and completely described below using examples. It will be clear that the examples described are only some, not all, examples of the present invention. Any other examples that a person skilled in the art could obtain based on the examples of the present invention without any creative work are all within the scope of the present invention.

[0029] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as those commonly understood by those skilled in the art, as can be understood by those skilled in the art. Furthermore, terms defined in general dictionaries should be interpreted as having the meaning consistent with their meaning in the context of the relevant art, and not as idealized or overly formal unless specifically defined herein.

[0030] As those skilled in the art will understand, unless otherwise specified, the singular forms “1” and “one,” “the said” and “the said” used herein may also include the plural forms. Furthermore, it should be understood that the term “equipped with” as used in this specification indicates the presence of features, integers, steps, operations, elements and / or parts, and does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or combinations thereof. The term “and / or” as used herein includes all or any combination of one or more of the relevant enumerated items.

[0031] A multifunctional electric device according to an embodiment of the present invention, with reference to Figures 1 to 13, comprises the following: a housing 1, a fan unit 2 provided inside the housing 1, an air passage component 3 connected to an opening in the housing 1 and the fan unit 2, and an air passage switching unit 4 connected to the air passage component 3. The air passage component 3 includes a main body plate 31 and an intake chamber 32. The main body plate 31 has an intake port 311 and an exhaust port 312, and one side of the intake port 311 is connected to the fan unit 2. The intake airflow generated by the fan unit 2 flows in through the intake port 311, and the exhaust airflow generated by the fan unit 2 is discharged through the exhaust port 312. The intake chamber 32 is provided on the other side of the intake port 311, and the intake chamber 32 has a suction port 3211. The suction port 3211 and the intake port 311 are non-parallel, and the suction port 3211 and the exhaust port 312 do not overlap in the circumferential direction. The airflow switching unit 4 and the airflow component 3 rotate relative to each other to achieve intake or exhaust.

[0032] In this embodiment, the fan unit 2 is located inside the housing 1, and the air passage component 3 is connected to the opening of the housing 1 and the fan unit 2. Both intake and exhaust air pass through the air passage component 3, and the airflow does not flow out from other parts of the housing 1. The air passage component 3 includes a main plate 31 and an intake chamber 32, and the main plate 31 is connected to the housing 1. One side of the intake port 311 is connected to the fan unit 2, and gas flows into the fan unit 2 from the intake port 311, and gas discharged from the fan unit 2 flows out from the exhaust port 312. The intake chamber 32 has an intake port 3211, and the intake port 3211 and the intake port 311 are non-parallel, and the intake port 3211 and the exhaust port 312 do not overlap in the circumferential direction and are not on the same plane. The intake airflow must first flow into the intake port 3211 and then reach the intake port 311. The airflow switching unit 4 is connected to the airflow component 3, and the airflow switching unit 4 and the airflow component 3 rotate relative to each other to achieve intake mode or exhaust mode. In intake mode, dust collection is possible, and in exhaust mode, dust supply or hair styling is possible, allowing for diverse functions of the device. Furthermore, the axial length of the airflow switching unit 4 can be as short as the axial length of the intake chamber 32. The intake port 3211 and exhaust port 312, which are not on the same plane, are advantageous in working with the airflow switching unit 4 to change the direction of the airflow, significantly shortening the length of the airflow switching unit 4, effectively reducing the volume of the device, and making the structure more compact.

[0033] As shown in Figure 8, there are two exhaust ports 312 and two intake ports 3211, but it is easy to conceive of having one, three, four, or more exhaust ports 312 and two intake ports 3211, respectively. However, the exhaust ports 312 and intake ports 3211 do not exist in the same radial region, and the radial region where the exhaust ports 312 exist and the radial region where the intake ports 3211 exist are arranged alternately. As shown in Figure 9, the radial region D1 where the exhaust ports 312 exist and the radial region D2 where the intake ports 3211 exist do not overlap.

[0034] Optionally, the airflow switching unit 4 includes a vent outer cylinder 41 and a switching inner cylinder 42. The vent outer cylinder 41 is provided with a plurality of vent holes 411, and the switching inner cylinder 42 cooperates with the airflow component 3 to form two types of gas passages in intake mode and exhaust mode, respectively. In intake mode, the first intake gas passage connects the vent holes 411 to the exhaust port 312, and the second intake gas passage is connected to the intake port 3211. In exhaust mode, the first exhaust gas passage connects the vent holes 411 to the intake port 3211, and the second exhaust gas passage is connected to the exhaust port 312.

[0035] In this embodiment, the multiple vents 411 provided in the vent outer cylinder 41 primarily serve to communicate with the outside air. The switching inner cylinder 42 works in cooperation with the air passage component 3 to form different gas passages, and the air passage component 3 does not rotate. In intake mode, the first intake gas passage connects the vents 411 and the exhaust port 312, and the airflow is discharged from the exhaust port 312 through the first intake gas passage to the outside through the vents 411. The second intake gas passage is connected to the intake port 3211, and the airflow flows through the second intake gas passage into the intake port 3211, then into the intake port 311, allowing the fan unit 2 to operate normally and completing the entire dust collection cycle. In exhaust mode, the first exhaust gas passage connects the vent hole 411 and the intake port 3211. External air flows from the vent hole 411 through the first exhaust gas passage to the intake port 3211, and then flows into the intake port 311. The second exhaust gas passage is connected to the exhaust port 312, and the airflow is blown out from the exhaust port 312 through the second exhaust gas passage towards the dust, completing the entire dust collection cycle. The vent outer cylinder 41 and the switching inner cylinder 42 may be integrally molded or they may be engaged with each other. When the vent outer cylinder 41 is rotated, the switching inner cylinder 42 rotates in conjunction. If the vent holes 411 are uniformly distributed throughout the vent outer cylinder 41, the mode can also be switched by rotating only the switching inner cylinder 42.

[0036] Optionally, the intake chamber 32 includes a chamber side surface 321 and a chamber bottom surface 322, with the suction port 3211 located on the chamber side surface 321. The chamber bottom surface 322 includes a flat surface, an arc-shaped surface, or a conical surface. In this embodiment, the intake chamber 32 can be a frustoconical shape (see Figure 8), cylindrical, drum-shaped, approximately spherical (see Figure 11), conical, etc. Therefore, the circumferential surface on which the suction port 3211 is located is considered the chamber side surface 321, and the portion of the intake chamber 32 away from the main body plate 31 is considered the chamber bottom surface 322. Thus, the chamber bottom surface 322 can be a flat surface, an arc-shaped surface, or a conical surface.

[0037] Optionally, the switching inner cylinder 42 is provided with a central housing passage whose shape conforms to the intake chamber 32 and houses the intake chamber 32. The side surface of the central housing passage is provided with at least one first opening 4211 and at least one second opening 4212, and the first opening 4211 or the second opening 4212 is connected opposite to the intake port 3211. A radially extending first bottom plate 422 is formed on the outer circumference of the side of the first opening 4211 that is close to the chamber bottom surface 322. Outside the second opening 4212 is a first passage 423 that is axially aligned, and the first passage 423 includes a first passage main plate 4231 coaxial with the second opening 4212 and a first passage side plate 4232 connected to the central housing passage.

[0038] In this embodiment, the air passage component 3 in Figure 8 includes a frustoconical intake chamber 32 and fits the switching inner cylinder 42 in Figure 10. The air passage component 3 in Figure 11 includes a roughly spherical intake chamber 32 and fits the switching inner cylinder 42 in Figure 12. Therefore, the shape of the central housing passage must be adapted to the intake chamber 32. The following description will use the case where the central housing passage is adapted to the frustoconical intake chamber 32 as an example. The intake chamber 32 is assembled into the central housing passage of the switching inner cylinder 42, and the intake port 3211 is connected opposite to either the first opening 4211 or the second opening 4212 to realize different operating modes. At least one first opening 4211 and at least one second opening 4212 are provided, and these correspond to at least one intake port 3211 and at least one exhaust port 312, respectively. In other words, the number of first openings 4211, second openings 4212, suction ports 3211, and exhaust ports 312 is the same, and the first openings 4211 and second openings 4212 are arranged alternately. Although Figure 10 shows two first openings 4211 and two second openings 4212, it is easy to conceive of having one, three, four, or more. In the configuration of Figure 10, two first openings 4211 and two second openings 4212 correspond to two suction ports 3211 and two exhaust ports 312. The operating mode can be switched simply by rotating the vent outer cylinder 41 by 90 degrees. In the case of other numbers, rotations of 180 degrees, 60 degrees, 45 degrees, etc., may be used. The rotation angle is calculated according to the number of first openings 4211, second openings 4212, suction ports 3211, and exhaust ports 312.

[0039] Optionally, in intake mode, the second opening 4212 is connected opposite to the intake port 3211, the main body plate 31 and the first passage 423 constitute the second intake gas passage, and the first bottom plate 422, the first passage side plate 4232 and the chamber side surface 321 constitute the first intake gas passage. In exhaust mode, the first opening 4211 is connected opposite to the intake port 3211, the first bottom plate 422 and the first passage side plate 4232 constitute the first exhaust gas passage, and the first passage 423 and the chamber side surface 321 constitute the second exhaust gas passage.

[0040] In this embodiment, in intake mode, the vent outer cylinder 41 is rotated so that the second opening 4212 is connected opposite to the suction port 3211. The arrows in Figure 4 indicate the flow of intake airflow. The airflow flows through the second intake gas passage, which is formed by the main body plate 31 and the first passage 423, into the second opening 4212, and then into the suction port 3211 and the intake port 311. The second intake gas passage, formed by the main body plate 31 and the first passage 423, is the intake path. The airflow flows out from the exhaust port 312, passes through the first intake gas passage, which is formed by the first bottom plate 422, the first passage side plate 4232, and the chamber side surface 321, and is discharged to the outside through the vent hole 411. The first intake gas passage is the exhaust path. In exhaust mode, the vent outer cylinder 41 is rotated so that the first opening 4211 is connected opposite to the suction port 3211. The arrows in Figure 6 indicate the intake airflow. External air flows in through the vent 411, passes through the first exhaust gas passage formed by the first bottom plate 422 and the first passage side plate 4232, flows into the first opening 4211, and then flows into the suction port 3211 and the intake port 311. The first exhaust gas passage is the intake path. The airflow flows out from the exhaust port 312 and is blown out to the outside through the second exhaust gas passage formed by the first passage 423 and the chamber side surface 321. The second exhaust gas passage is the exhaust path.

[0041] Optionally, a side recess 3212 exists around the suction port 3211 on the side surface 321 of the chamber, and a step 323 exists between the side surface 321 of the chamber, the suction port 3211, and the bottom surface 322 of the chamber. Flexible sealing members are provided in the side recess 3212 and the step 323. In this embodiment, a flexible sealing member (e.g., a flexible rubber ring) is provided on the side surface 321 of the chamber to ensure close contact between the intake chamber 32 and the central housing passage of the switching inner cylinder 42, to ensure isolation between each gas passage, and to enhance the effect of the intake or exhaust mode. Note that a similar isolation and sealing effect can be obtained by providing a recess in the central housing passage of the switching inner cylinder 42 and filling it with a flexible sealing member.

[0042] Optionally, an air collecting component 5 is also provided, which is attached to one side of the airflow switching unit 4 away from the airflow component 3, and is connected to the airflow component 3. In this embodiment, in both the case of dust collection and dust delivery, the target airflow is drawn in or blown out via the first passage 423, and the airflow does not concentrate at the axis center. For this reason, an air collecting component 5 is provided to guide the airflow to concentrate at the axis center for drawing in or blowing out. Because the air collecting component 5 is connected to the airflow component 3, the air collecting component 5 does not move in conjunction with the rotation of the airflow switching unit 4, making the rotation operation easy and labor-saving.

[0043] Optionally, the air collection component 5 includes an air collection housing 51 and a hollow connecting member 52. A central air hole 511 is provided in the axial part of the air collection housing 51, the hollow connecting member 52 is mounted inside the air collection housing 51, and the hollow connecting member 52 is connected to the chamber bottom surface 322. In this embodiment, in exhaust mode, the airflow flows out from the first passage 423, is guided to the air collection component 5, and is blown out from the central air hole 511. In intake mode, the airflow flows in from the central air hole 511, is guided to the air collection component 5, and flows into the first passage 423. The hollow connecting member 52 does not obstruct the airflow and is connected to the chamber bottom surface 322. The connection method may be a fixed connection (adhesion, etc.) or a removable connection (screw, engagement, etc.), as long as it is configured so that the air collection component 5 does not move in conjunction with the rotation of the airflow switching unit 4.

[0044] Optionally, the chamber bottom surface 322 is provided with a connecting recess 3221 or a connecting projection 3222, and the connecting recess 3221 or connecting projection 3222 is connected to the front hollow connecting member 52. In this embodiment, in the air passage component 3 shown in Figure 8, the chamber bottom surface 322 is provided with a connecting recess 3221, and the hollow connecting member 52 shown in Figure 13 engages with the connecting recess 3221, so that the air collecting component 5 does not move in conjunction with the rotation of the air passage switching unit 4. In the air passage component 3 shown in Figure 11, the chamber bottom surface 322 is provided with a connecting projection 3222, and after the connecting projection 3222 penetrates the central housing passage, a recess or thread is provided in the connecting projection 3222 (not shown), and the hollow connecting member 52 is designed to fit the recess or thread of the connecting projection 3222 (not shown), so that the air collecting component 5 does not move in conjunction with the rotation of the air passage switching unit 4.

[0045] Optionally, the air collection component 5 is provided with a vent passage 53, the vent passage 53 extending axially from the central vent 511 toward one side away from the airflow switching unit 4. In this embodiment, the vent passage 53 is extended axially from the central vent 511 toward one side away from the airflow switching unit 4 in order to better guide the airflow and to accommodate connections with various external components.

[0046] The air collection component 5 is optionally connected to the airflow switching unit 4. In this embodiment, the air collection component 5 may be connected to the airflow switching unit 4 by screwing, engaging, etc., in which case the air collection component 5 rotates in conjunction with the rotation of the airflow switching unit 4.

[0047] Optionally, the system is further equipped with a dust collection unit 6, which includes a dust cup 61 and a HEPA filter 62, with the HEPA filter 62 mounted inside the dust cup 61. In this embodiment, the dust collection unit 6 is provided to enhance the dust collection effect. The dust collection unit 6 is located on one side of the airflow switching unit 4 away from the housing 1. When the device is in intake mode, dust and debris drawn in from the outside are blocked by the HEPA filter, and only clean airflow flows through the intake path formed by the first passage 423 and the main body plate 31 to the second opening 4212, the intake port 3211, and the intake port 311.

[0048] Optionally, the dust cup 61 includes a cup body 611 and a front lid 612 for the suction port, and the cup body 611 and the front lid 612 are detachably connected. In this embodiment, the cup body 611 and the front lid 612 are detachably connected. When the front lid 612 is removed and the airflow switching unit 4 is switched to exhaust mode, the airflow flows out from the exhaust port 312, passes through the exhaust path formed by the first passage 423 and the side of the chamber 321, and is blown onto the HEPA filter 62, enabling self-cleaning of the dust cup.

[0049] Optionally, the dust cup 61 is equipped with a front lid button 613, which controls the opening and closing of the suction nozzle front lid 612. In this embodiment, the cup body 611 and the suction nozzle front lid 612 are hinged together, and pressing the front lid button 613 opens the suction nozzle front lid 612, making it easier to clean the dust cup.

[0050] Optionally, an additional air blower nozzle 7 is provided. In this embodiment, in order to adapt to various work situations such as cleaning gaps and corners of keyboards, the air blower nozzle 7 is provided to first blow out dust in dust blowing mode and then suck up the dust. By simply removing the dust collection unit 6, connecting the air blower nozzle 7 to the air passage 53, and switching the air path switching unit 4 to exhaust mode, a good dust blowing effect can be obtained.

[0051] The housing 1 may optionally include a handle portion 11. In this embodiment, the inclusion of the handle portion 11 in the housing 1 makes it easier for the user to grip and reduces the burden during use. The handle portion 11 may be integrally molded with the housing 1, or it may be attached to the housing 1 as a separate part.

[0052] Optionally, a battery unit 8 may be provided, which is mounted inside the handle portion 11. In this embodiment, the battery unit 8 supplies power to the fan unit 2, thereby improving the portability of the device.

[0053] Optionally, a charging interface is provided on the handle portion 11. In this embodiment, providing a charging interface on the handle portion 11 makes it easy to charge the battery unit 8.

[0054] As those skilled in the art will understand, the steps, measures, and schemes in the various operations, methods, and flows already described in this utility model may be replaced, modified, combined, or deleted. Furthermore, other steps, measures, and schemes in the various operations, methods, and flows already described in this utility model may also be replaced, modified, rearranged, disassembled, combined, or deleted. Furthermore, steps, measures, and schemes in the operations, methods, and flows disclosed in this utility model that are similar in the prior art may also be replaced, modified, rearranged, disassembled, combined, or deleted.

[0055] In the description of this utility model, terms such as "center," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," and "outside" refer to directions or positional relationships based on the directions or positional relationships shown in the drawings. These terms are merely for the purpose of simplifying the description and making the explanation of this utility model easier, and do not indicate or imply that the device or component has a specific direction, or that it is configured and operates in a specific direction. Therefore, they should not be understood as limitations on this utility model.

[0056] The terms "first" and "second" are used solely for descriptive purposes and should not be understood as indicating or implying relative importance, or implicitly indicating the number of designated technical features. Therefore, features designated as "first" or "second" may explicitly or implicitly include one or more such features. In this description of the utility model, unless otherwise stated, "multiple" means two or more.

[0057] In the description of this utility model, unless otherwise explicitly stated or limited, the terms “attachment,” “connection,” and “connection” should be understood in a broad sense. For example, the connection may be fixed, detachable, or integral. The connection may be direct, indirectly connected via an intermediate medium, or the internals of the two parts may be in communication. A person with ordinary skill in the art will be able to understand the specific meaning of the above terms in this utility model depending on the specific circumstances.

[0058] In this specification, specific features, structures, materials, or properties may be combined in an appropriate manner in any one or more examples or embodiments.

[0059] In the flowcharts shown in the diagrams, each step is indicated sequentially according to the arrows; however, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise explicitly stated herein, there are no strict order restrictions on the execution of these steps, and they may be performed in other orders. Furthermore, at least some steps in the flowcharts shown in the diagrams may include multiple substeps or stages. These substeps or stages do not necessarily have to be completed at the same time; they may be executed at different times. Their execution order is also not necessarily sequential; they may be performed alternately or in rotation with other steps or at least some of the substeps or stages within other steps.

[0060] Finally, the above embodiments are for illustrative purposes only and are not intended to limit the technical means of this utility model. Although this utility model has been described in detail with reference to the above embodiments, a person with ordinary skill in the art can further modify the technical means described in the above embodiments or make equivalent substitutions to some or all of the technical features thereof. Such modifications or equivalent substitutions will not cause the essence of the corresponding technical means to deviate from the scope of the technical means of the embodiments of this utility model.

Claims

1. A multi-functional electric device comprising a housing, a fan unit provided inside the housing, an air passage component connected to an opening in the housing and the fan unit, and an air passage switching unit connected to the air passage component, The air passage component includes a main plate and an intake chamber, the main plate having an intake port and an exhaust port, one side of the intake port being connected to the fan unit, the intake airflow generated by the fan unit flowing in through the intake port, the exhaust airflow generated by the fan unit being discharged through the exhaust port, the intake chamber being provided on the other side of the intake port, the intake chamber having an intake port, the intake port and the intake port being non-parallel, and the intake port and the exhaust port not overlapping in the circumferential direction. The aforementioned airflow switching unit and the airflow component rotate relative to each other to achieve intake or exhaust. A multi-functional electric device characterized by the following features.

2. The airflow switching unit includes a vent outer cylinder and a switching inner cylinder, the vent outer cylinder having a plurality of vent holes, and the switching inner cylinder cooperating with the airflow component to form two types of gas passages in intake mode and exhaust mode, respectively. In intake mode, the first intake gas passage connects the vent hole and the exhaust port, and the second intake gas passage is connected to the intake port. In exhaust mode, the first exhaust gas passage connects the vent hole and the intake port, and the second exhaust gas passage is connected to the exhaust port. The multi-functional electric device according to claim 1.

3. The intake chamber includes the sides and bottom of the chamber, the intake port is located on the side of the chamber, and the bottom of the chamber includes a flat surface, an arc-shaped surface, or a conical surface. The multi-functional electric device according to claim 2.

4. The switching inner cylinder is provided with a central housing passage, the shape of which conforms to the intake chamber and houses the intake chamber, and at least one first opening and at least one second opening are provided on the side of the central housing passage, the first opening or the second opening is connected opposite to the intake port, a radially extending first bottom plate is formed on the outer circumference of one side of the first opening that is close to the bottom surface of the chamber, a first passage is provided outside the second opening that is axially aligned, and the first passage includes a first passage main plate coaxial with the second opening and a first passage side plate connected to the central housing passage. The multi-functional electric device according to claim 3.

5. In intake mode, the second opening is connected opposite to the intake port, the main body plate and the first passage constitute the second intake gas passage, and the first bottom plate, the first passage side plate and the chamber side surface constitute the first intake gas passage. In exhaust mode, the first opening is connected opposite to the intake port, the first bottom plate and the first passage side plate constitute the first exhaust gas passage, and the first passage and the chamber side surface constitute the second exhaust gas passage. The multi-functional electric device according to feature 4.

6. A recess exists on the side of the chamber around the suction port, a step exists between the side of the chamber, the suction port, and the bottom surface of the chamber, and a flexible sealing member is provided in the recess and the step. The multi-functional electric device according to claim 3.

7. Furthermore, it is equipped with an air collection component, the air collection component is attached to one side of the airflow switching unit away from the airflow component, and the air collection component is connected to the airflow component. The multi-functional electric device according to claim 3.

8. The aforementioned air collecting component includes an air collecting housing and a hollow connecting member, the central air hole is provided in the axial part of the air collecting housing, the hollow connecting member is mounted inside the air collecting housing, and the hollow connecting member is connected to the bottom surface of the chamber. The multi-functional electric device according to feature 7.

9. The bottom surface of the chamber is provided with a connecting recess or connecting protrusion, and the connecting recess or connecting protrusion is connected to the hollow connecting member. The multi-functional electric device according to feature 8.

10. The air collection component is provided with an air vent passage, and the air vent passage extends axially toward one side away from the central air vent and away from the airflow switching unit. The multi-functional electric device according to feature 8.

11. Furthermore, it is equipped with an air collection component, the air collection component is attached to one side of the airflow switching unit away from the airflow component, and the air collection component is connected to the airflow switching unit. The multi-functional electric device according to claim 1.

12. Furthermore, it is equipped with a dust collection unit, the dust collection unit including a dust cup and a HEPA filter, the HEPA filter being installed inside the dust cup. The multi-functional electric device according to claim 1.

13. The dust cup includes a cup body and a front cap for the mouthpiece, and the cup body and the front cap for the mouthpiece are detachably connected. The multi-functional electric device according to claim 12.

14. The dust cup is equipped with a front lid button, which controls the opening and closing of the front lid of the suction nozzle. The multi-functional electric device according to claim 13.

15. Furthermore, it includes a blower nozzle. The multi-functional electric device according to claim 1.

Images