Airflow device and blower

Abstract

The application discloses an air flow device and a blowing and sucking machine. The air flow device comprises a shell assembly, a motor arranged in the shell assembly, a fan assembly comprising at least a fan blade, the fan assembly being arranged to be driven by the motor to generate air flow, an air suction port arranged as an air flow inlet, and an air blowing port arranged as an air flow outlet. The air flow device further comprises an electrostatic conduction device arranged in a circumferential direction of the fan. The electrostatic conduction device comprises a first end arranged close to the fan blade and a second end arranged close to the air blowing port. The above technical scheme can provide an air flow device and a blowing and sucking machine which are not easily damaged by static electricity and improve user experience.

Description

Technical Field

[0001] This application relates to a power tool, specifically an airflow device and a blower / suction machine. Background Technology

[0002] One type of related technology is the blower / vacuum cleaner, a common electric outdoor cleaning tool mainly used for cleaning and collecting debris such as leaves. The blower / vacuum cleaner uses the rotation of internal fan blades to gather leaves and other debris, and then uses suction to suck up the fallen leaves, thus collecting them.

[0003] During operation, dust and other particles in a blower generate static electricity through friction with the internal fan blades and casing. This static charge accumulates on the fan blades and casing, and can potentially transfer to the electronic components within the blower. When the static charge accumulates to a certain level, it can damage the electronic components, causing system damage and rendering the blower malfunction.

[0004] This section provides background information related to this application, which is not necessarily prior art. Summary of the Invention

[0005] One objective of this application is to solve or at least alleviate some or all of the aforementioned problems. Therefore, one objective of this application is to provide an airflow device and blower / suction machine that is not easily damaged by static electricity, thereby improving the user experience.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] An airflow device includes: a housing assembly; a motor disposed within the housing assembly; a fan assembly including at least fan blades, the fan assembly being configured to generate airflow by being driven by the motor; an air intake port being configured as an airflow inlet; and an air outlet being configured as an airflow outlet; further comprising: an electrostatic conduction device disposed circumferentially around the fan; the electrostatic conduction device including a first end disposed near the fan blades and a second end disposed near the air outlet.

[0008] In some embodiments, the airflow device further includes a baffle disposed circumferentially within the housing assembly around the fan assembly.

[0009] In some embodiments, the baffle is detachably mounted inside the housing assembly.

[0010] In some embodiments, the baffle is configured as part of the housing assembly.

[0011] In some embodiments, the electrostatic conduction device is disposed on the inner or outer side of the baffle.

[0012] In some embodiments, the electrostatic conduction device is embedded in a baffle, with a first end passing through the baffle and close to the fan blade, and a second end passing through the baffle and close to the air outlet.

[0013] In some embodiments, the electrostatic conduction device is configured as a one-piece metal component.

[0014] In some embodiments, the electrostatic conduction device further includes a connecting segment configured to connect a first end and a second end; the first end and the second end are metal ends; and the connecting segment is a conductive strip.

[0015] In some embodiments, antistatic materials are added to the fan blades, baffles, or housing assembly.

[0016] In some embodiments, the resistivity of the antistatic material is less than or equal to 10. 6 Ω·m.

[0017] In some embodiments, a blower includes: a motor; a fan assembly including at least a centrifugal fan configured to generate airflow by being driven by the motor; an air intake configured as an airflow inlet; and an air outlet configured as an airflow outlet; further comprising: an electrostatic conduction device including a first end and a second end, wherein the first end is closer to the centrifugal fan blades than the second end, and the second end is closer to the air outlet than the first end.

[0018] In some embodiments, the first end is configured to include at least one tip, the distance between the tip and the fan blade being less than or equal to 15 mm.

[0019] In some embodiments, the airflow device further includes a baffle disposed circumferentially around the fan assembly within the housing assembly of the blower.

[0020] In some embodiments, the baffle is detachably mounted inside the housing assembly.

[0021] In some embodiments, the baffle is configured as part of the housing assembly.

[0022] In some embodiments, the electrostatic conduction device is disposed on the inner or outer side of the baffle.

[0023] In some embodiments, the electrostatic conduction device is embedded in a baffle, with the first end passing through the baffle and approaching the fan blade relative to the second end, and the second end passing through the baffle and approaching the air outlet relative to the first end.

[0024] In some embodiments, the electrostatic conduction device is configured as a one-piece metal component.

[0025] In some embodiments, the electrostatic conduction device further includes a connecting segment configured to connect a first end and a second end; the first end and the second end are metal ends; and the connecting segment is a conductive strip.

[0026] In some embodiments, antistatic materials are added to the fan blades, baffles, or housing assembly.

[0027] In some embodiments, an airflow device includes: a motor; a fan assembly including at least fan blades, the fan assembly being configured to generate airflow by being driven by the motor; an air intake configured as an airflow inlet; and an air outlet configured as an airflow outlet; further comprising: an electrostatic conduction device including a first end disposed near the fan blades and a second end disposed near the air outlet; the maximum distance between the electrostatic conduction device and the outer edge of the fan blades is less than or equal to 90 mm.

[0028] In some embodiments, the airflow device further includes a baffle disposed circumferentially around the fan assembly within the housing assembly of the airflow device.

[0029] In some embodiments, the electrostatic conduction device is disposed on the inner or outer side of the baffle.

[0030] In some embodiments, the electrostatic conduction device is embedded in a baffle, with a first end passing through the baffle and close to the fan blade, and a second end passing through the baffle and close to the air outlet.

[0031] In some embodiments, the electrostatic conduction device further includes a connecting segment configured to connect a first end and a second end; the first end and the second end are metal ends; and the connecting segment is a conductive strip.

[0032] In some embodiments, an airflow device includes: a motor; a fan assembly including at least fan blades, the fan assembly being configured to generate airflow by being driven by the motor; an air intake configured as an airflow inlet; and an air outlet configured as an airflow outlet; further comprising: an electrostatic conduction device including a first end disposed near the fan blades and a second end disposed near the air outlet; the minimum straight-line distance between the first end and the second end of the electrostatic conduction device being greater than or equal to 25 mm.

[0033] In some embodiments, the airflow device further includes a baffle disposed circumferentially around the fan assembly within the housing assembly of the airflow device.

[0034] In some embodiments, the electrostatic conduction device is disposed on the inner or outer side of the baffle.

[0035] In some embodiments, the electrostatic conduction device is embedded in a baffle, with a first end passing through the baffle and close to the fan blade, and a second end passing through the baffle and close to the air outlet.

[0036] In some embodiments, the electrostatic conduction device further includes a connecting segment configured to connect a first end and a second end; the first end and the second end are metal ends; and the connecting segment is a conductive strip.

[0037] In some embodiments, an airflow device includes: a motor; a fan assembly including at least a fan configured to generate airflow by being driven by the motor; an air intake configured as an airflow inlet; and an air outlet configured as an airflow outlet; wherein the linear velocity of the fan is greater than or equal to 85 m / s; the airflow device further includes: an electrostatic conduction device configured to at least conduct electrostatic charges carried by the fan.

[0038] The advantage of this application is that by setting an electrostatic conduction device on the airflow device, with one end of the electrostatic conduction device close to the fan blade and the other end close to the air outlet, the electrostatic conduction device can conduct static electricity on the fan blade to the air, making the airflow device less susceptible to damage from static electricity and improving the user experience. Attached Figure Description

[0039] Figure 1 This is a perspective view of an embodiment of an airflow device;

[0040] Figure 2 yes Figure 1 Side sectional view of the airflow device in the middle;

[0041] Figure 3 yes Figure 1 A three-dimensional view of the fan assembly of the airflow device in the image;

[0042] Figure 4 yes Figure 1 A perspective view of the first electrostatic conduction device in the airflow equipment;

[0043] Figure 5 yes Figure 1 Another perspective perspective of the first electrostatic conduction device of the airflow equipment;

[0044] Figure 6 yes Figure 1 A three-dimensional diagram showing the connection of the first electrostatic conduction device in the airflow equipment.

[0045] Figure 7 This is a perspective view of the first electrostatic conduction component of the first electrostatic conduction device of an airflow apparatus according to an embodiment, which is formed by a tip.

[0046] Figure 8 This is a side view of the fourth electrostatic conduction component included in the first electrostatic conduction device of an airflow apparatus according to an embodiment.

[0047] Figure 9 This is a side view of the connection of the second electrostatic conduction device in an embodiment of an airflow device;

[0048] Figure 10 This is a side view of the connection of the third electrostatic conduction device in an embodiment of an airflow device;

[0049] Figure 11yes Figure 10 A sectional view of the connection side of the third electrostatic conduction device in the airflow equipment;

[0050] Figure 12 This is a side view of an airflow device in a blowing state according to an embodiment;

[0051] Figure 13 yes Figure 12 Side sectional view of the airflow device in the middle;

[0052] Figure 14 yes Figure 12 A side view of the airflow device in suction mode;

[0053] Figure 15 This is a perspective view of an embodiment of an airflow device including an electrostatic conduction device and a housing assembly;

[0054] Figure 16 yes Figure 15 Another perspective view of the airflow device, including the electrostatic conduction device and the housing assembly;

[0055] Figure 17 yes Figure 15 A three-dimensional view of the airflow equipment, including the electrostatic conduction device;

[0056] Figure 18 yes Figure 17 The airflow device in the image includes an electrostatic conduction device, viewed from another perspective in a three-dimensional perspective.

[0057] Figure 19 This is a perspective view of an embodiment of an airflow device including an electrostatic conduction device;

[0058] Figure 20 This is a perspective view of an embodiment of an airflow device including an electrostatic conduction device spanning an air outlet;

[0059] Figure 21 This is a graph showing the relationship between the linear velocity and static electricity of a fan assembly in an airflow device according to one embodiment. Detailed Implementation

[0060] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0061] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0062] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0063] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0064] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0065] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0066] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0067] This application provides an airflow device for generating airflow to suck up and collect thin objects such as fallen leaves. In some embodiments, the airflow device is a blower / vacuum; in some other embodiments, the airflow device is a leaf vacuum. This application uses a blower / vacuum as an example for specific description.

[0068] See Figures 1 to 3 The airflow device includes a housing assembly 100, a motor 200, and a fan assembly 300. The motor 200 is housed within the housing assembly 100, and the fan assembly 300 is connected to the motor 200 and driven by the motor 200 to generate airflow. The housing assembly 100 has an air intake 101 and an air outlet 102. The air intake 101 is the airflow inlet, and the air outlet 102 is the airflow outlet. The air intake 101 corresponds to the fan assembly 300. When the fan assembly 300 is operating, airflow enters from the air intake 101, passes through the motor 200, and then flows out from the air outlet 102, achieving either blowing or suction. Simultaneously, the airflow can dissipate heat from the motor 200 during its flow. Figure 1 As shown, the airflow device also includes a suction tube 400, which is detachably mounted on the suction port 101. The other end of the suction tube 400, not connected to the suction port 101, forms a suction port for drawing in materials. A fan assembly 300 is connected to the motor shaft of the motor 200. Driven by the motor 200, the motor shaft rotates, synchronously driving the fan assembly 300 to rotate. The rotation of the fan assembly 300 generates negative pressure, thereby providing power for the airflow device to draw in fallen leaves and other materials. The suction tube 400 utilizes negative pressure to draw in materials, including but not limited to fallen leaves, dust, twigs, and small stones.

[0069] In some embodiments, the suction tube 400 is a flexible tube with a smooth inner wall, which is easy to store. In some specific embodiments, the suction tube 400 has a corrugated tube structure, specifically including a spiral support strip for support and a soft ventilation material covering the spiral support strip. The soft ventilation material can be cotton cloth or plastic sheeting, etc. The soft ventilation material can both block fallen leaves and other objects within the suction tube 400 and provide ventilation. The flexible tube suction tube 400 can be used in various airflow devices that can blow or suck air, such as handheld hair dryers, backpack hair dryers, blow-vacuum cleaners, vacuum cleaners, etc.

[0070] like Figure 3 As shown, the fan assembly 300 includes fan blades 310. (As indicated...) Figure 4 As shown, the suction tube 400 includes a first end 410 and a second end 420, and a tube body 430 connecting the first end 410 and the second end 420. The first end 410 is close to the fan blade 310, and the second end 420 is away from the fan blade 310. Specifically, the first end 410 is closer to the fan blade 310 relative to the second end 420, and the second end 420 is farther away from the fan blade 310 relative to the first end 410. The first end 410 of the suction tube 400, which is close to the fan blade 310, refers to the end connected to the air intake 101. The first end 410, the second end 420, and the tube body 430 of the suction tube 400 are all made of plastic, meaning the suction tube 400 is made of plastic. When the airflow device is operating, the motor 200 drives the fan blades 310 to rotate, generating negative pressure. The suction tube 400 draws in the material based on this negative pressure. The material enters from the second end 420 of the suction tube 400, passes through the tube body 430, and reaches the first end 410. At this time, because the fan blades 310 are made of plastic, they will generate a large amount of static electricity through friction with the material. On the one hand, the airflow device contains a control circuit board, and this static electricity will adversely affect the control circuit board. If the static electricity persists for a long time, it will break down the control circuit board, causing damage and rendering the airflow device unusable. On the other hand, the airflow device has a grip for the user, which is connected to the inside of the airflow device via wires. Static electricity will be transmitted to the grip through the wires, causing the user to experience discomfort from static shocks, resulting in a poor user experience.

[0071] like Figure 4 and Figure 5As shown, the airflow device includes a first electrostatic conduction device 500. The first electrostatic conduction device 500 includes one end disposed near the fan blade 310 and another end for contacting the ground. When using the airflow device, the first electrostatic conduction device 500 conducts the static electricity generated on the fan blade 310 to the ground. Optionally, the first electrostatic conduction device 500 includes a first electrostatic conduction component 510 at the end disposed near the fan blade 310, and a third electrostatic conduction component 530 at the other end for contacting the ground. Specifically, the first electrostatic conduction component 510 is closer to the fan blade than the third electrostatic conduction component 530.

[0072] In some embodiments, such as Figures 4 to 6 As shown, the first electrostatic conduction device 500 includes a first electrostatic conduction component 510, a second electrostatic conduction component 520, and a third electrostatic conduction component 530. In some embodiments, the first electrostatic conduction component 510, the second electrostatic conduction component 520, and the third electrostatic conduction component 530 may be integrally formed. In some embodiments, the first electrostatic conduction component 510, the second electrostatic conduction component 520, and the third electrostatic conduction component 530 may be separately disposed.

[0073] The first electrostatic conduction component 510 is disposed on the first end 410 of the suction tube 400, close to the fan blade 310. The first electrostatic conduction component 461 induces the static electricity on the fan blade 310. For example, when the static electricity generated by the friction between the fan blade 310 and the object being sucked is positive, the previously uncharged first electrostatic conduction component 510 will generate a negative charge, inducing the positive charge on the fan blade 310. Similarly, if the static electricity generated by the friction between the fan blade 310 and the object being sucked is negative, the previously uncharged first electrostatic conduction component 510 will generate a positive charge, inducing the negative charge on the fan blade 310. Optionally, the distance between the first electrostatic conduction component 510 and the fan blade 310 is less than or equal to 15 mm.

[0074] In some embodiments, the distance between the first electrostatic conductive component 510 and the fan blade 310 is greater than 1 mm and less than or equal to 15 mm. In some embodiments, the distance between the first electrostatic conductive component 510 and the fan blade 310 is greater than 1 mm and less than or equal to 10 mm. In some embodiments, the distance between the first electrostatic conductive component 510 and the fan blade 310 is greater than 1 mm and less than or equal to 5 mm. In some embodiments, the distance between the first electrostatic conductive component 510 and the fan blade 310 is greater than 1 mm and less than or equal to 3 mm. In some embodiments, the distance between the first electrostatic conductive component 510 and the fan blade 310 is greater than 3 mm and less than or equal to 10 mm. In some embodiments, the distance between the first electrostatic conductive component 510 and the fan blade 310 is greater than 3 mm and less than or equal to 5 mm.

[0075] Optionally, the first electrostatic conduction component 510 may be made of aluminum alloy. Alternatively, the first electrostatic conduction component 510 may also be made of other conductive metals; this application is not limited to any particular material. By placing the first electrostatic conduction component 510 on the first end 410 of the suction cylinder 400, close to the fan blade 310, it eliminates the need to place it on the fan assembly 300 or the motor 200, simplifying the assembly and fixing of the first electrostatic conduction component 510 and avoiding problems with improper assembly and fixing.

[0076] In some embodiments, such as Figure 4 As shown, to ensure that the first electrostatic conduction component 510 can fully sense the static electricity on the fan blade 310, the first electrostatic conduction component 510 can be arranged around the first end 410 of the suction cylinder 400. The first electrostatic conduction component 510 has a ring structure, so that the static electricity generated by the fan blade 310 can be sensed by the first electrostatic conduction component 510 no matter what angle it rotates to. In addition, the first electrostatic conduction component 510 can also be arranged around a portion of the first end 410 of the suction cylinder 400, which is not limited in this application.

[0077] In some embodiments, such as Figure 7 As shown, the first electrostatic conductive component 510 is composed of at least one tip. The first electrostatic conductive component 510 may have at least one tip arranged around the first end 410 of the suction cylinder 400, or it may have at least one tip at a portion of the first end 410 of the suction cylinder 400. Furthermore, the first electrostatic conductive component 510 may also be other conductive structures besides a ring structure or a tip; this application does not limit its application to such a design.

[0078] The second electrostatic conduction component 520 is disposed on the cylinder body 430 of the airflow device and connected to the first electrostatic conduction component 510, for conducting the static electricity induced by the first electrostatic conduction component 510. Optionally, the second electrostatic conduction component 520 may be an elongated component arranged along the front-back direction of the cylinder body 430 of the suction cylinder 400 (i.e., the front-back direction of the airflow device), so as to conduct static electricity while saving materials. In addition, the second electrostatic conduction component 520 may also be other shapes arranged along the front-back direction of the cylinder body 430 of the suction cylinder 400 (i.e., the front-back direction of the airflow device), which is not limited in this application. Optionally, the second electrostatic conduction component 520 may be made of stainless steel. Optionally, the second electrostatic conduction component 520 may also be made of other conductive metal materials, which is not limited in this application. In some embodiments, the second electrostatic conduction component 520 may be integrally formed. In some embodiments, the second electrostatic conduction component 520 may include two parts, which are connected to each other by a conductive structure. In some embodiments, the second electrostatic conduction component 520 may include three parts, which are connected to each other by a conductive structure. In some embodiments, the second electrostatic conductive component 520 may include multiple parts, which are connected in pairs by a conductive structure.

[0079] In some embodiments, the second electrostatic conduction component 520 is made of a conductive material with a high resistance, thereby slowing down the conduction speed of static electricity from the first electrostatic conduction component 510 to the third electrostatic conduction component 530 through the second electrostatic conduction component 520. This avoids the problem of rapid voltage changes in the airflow device due to the rapid conduction speed of the second electrostatic conduction component 520, which could potentially damage the airflow device. In some embodiments, such as Figure 6 As shown, a component 521 is connected to the second electrostatic conduction component 520. The component 521 has a certain resistance value, which is used to slow down the electrostatic conduction speed of the second electrostatic conduction component 520. Optionally, the component 521 can be a resistive element.

[0080] The third electrostatic conduction component 530 is disposed on the second end 420 of the suction tube 400, away from the fan blade 310. The third electrostatic conduction component 530 is also connected to the second electrostatic conduction component 520, receiving the static electricity conducted by the second electrostatic conduction component 520. The third electrostatic conduction component 530 can directly or indirectly contact the ground, conducting the static electricity from the second electrostatic conduction component 520 to the ground and releasing the static electricity. Specifically, when using the airflow device, the second end 420 of the suction tube 400 will continuously contact the ground or the object being sucked in on the ground. Therefore, when the second end 420 of the suction tube 400 is in direct contact with the ground, the third electrostatic conduction component 530 is in direct contact with the ground, conducting the static electricity to the ground. When the second end 420 of the suction tube 400 is in contact with the object being sucked in on the ground, since the object is not statically charged, this is equivalent to the second end 420 of the suction tube 400 being in contact with the ground, i.e., the third electrostatic conduction component 530 is indirectly in contact with the ground, conducting the static electricity to the ground through the object being sucked in on the ground. To ensure that the third electrostatic conduction component 530 can conduct static electricity to the ground regardless of the angle of the airflow device or its contact with the ground, the third electrostatic conduction component 530 must be installed around the second end 420 of the suction duct 400. Optionally, the third electrostatic conduction component 530 may also be partially installed only on the second end 420 of the suction duct 400; this application does not impose any limitations on this.

[0081] Optionally, the third electrostatic conduction component 530 may be made of aluminum alloy. Alternatively, the third electrostatic conduction component 530 may also be made of other conductive metal materials; this application is not limited to any particular type. Because the third electrostatic conduction component 530 is made of metal, compared to the second end 420 of the original plastic suction tube 400, the third electrostatic conduction component 530 is more wear-resistant when in contact with the ground, improving the wear resistance of the suction tube 400 and extending the overall service life of the airflow equipment.

[0082] In some embodiments, the first electrostatic conduction component 510 is fixed to the first end 410 of the suction cylinder 400 by a fixing member, and the third electrostatic conduction component 530 is also fixed to the second end 420 of the suction cylinder 400 by a fixing member. The fixing member can be made of a conductive metallic material, and can be a screw, etc., which is not limited in this application. The second electrostatic conduction component 520 can be snapped onto the cylinder body 430 of the suction cylinder 400 by a snap-fit ​​component. Figure 6 As shown, the second electrostatic conduction component 520 can conduct static electricity from the first electrostatic conduction component 510 to the third electrostatic conduction component 530 by connecting it to the fixing members of the first electrostatic conduction component 510 and the third electrostatic conduction component 530 respectively, or it can conduct static electricity by directly connecting it to the first electrostatic conduction component 510 and the third electrostatic conduction component 530. This application does not limit this.

[0083] In some embodiments, such as Figure 8 As shown, the first electrostatic conduction device 500 further includes a fourth electrostatic conduction component 540. One end of the fourth electrostatic conduction component 540 is connected to the motor 200 to conduct static electricity from the airflow device, such as the large amount of static electricity generated by the friction between the fan blades 310 and the suction object. Optionally, the end of the fourth electrostatic conduction component 540 connected to the motor 200 may include a pointed tip. Optionally, the fourth electrostatic conduction component 540 may be a conductive wire.

[0084] In some embodiments, the other end of the fourth electrostatic conduction component 540 can be connected to the first electrostatic conduction component 510, conducting static electricity from the airflow device to the first electrostatic conduction component 510, and then from the first electrostatic conduction component 510 to the second electrostatic conduction component 520 and the third electrostatic conduction component 530, thereby releasing static electricity through direct or indirect contact between the third electrostatic conduction component 530 and the ground. In some embodiments, the other end of the fourth electrostatic conduction component 540 can be connected to the second electrostatic conduction component 520, whereby the second electrostatic conduction component 520 simultaneously receives static electricity from both the first electrostatic conduction component 510 and the fourth electrostatic conduction component 540, and conducts it to the third electrostatic conduction component 530 to release static electricity. Furthermore, when the other end of the fourth electrostatic conduction component 540 is connected to the second electrostatic conduction component 520, the first electrostatic conduction device 500 can directly conduct static electricity from the airflow device through the fourth electrostatic conduction component 540 without the need for the first electrostatic conduction component 510.

[0085] By providing a first electrostatic conduction component 510 and / or a fourth electrostatic conduction component 540 connected to the motor 200 on the first end 410 of the suction tube 400 near the fan blade 310, a second electrostatic conduction component 520 on the body of the suction tube 400, and a third electrostatic conduction component 530 on the second end 420 of the suction tube 400 away from the fan blade 310, when using the airflow device, the static electricity generated on the fan blade 310 is conducted to the second electrostatic conduction component 520 through the first electrostatic conduction component 510 and / or the fourth electrostatic conduction component 540, then to the third electrostatic conduction component 530, and finally to the ground through the third electrostatic conduction component 530. This ensures that all static electricity generated on the fan blade 310 is conducted to the ground, avoiding the risk of electrostatic discharge damaging the control circuit board and the problem of static shocks causing poor user experience. This makes the airflow device less susceptible to damage from static electricity and improves the user experience.

[0086] like Figure 1As shown, the airflow device also includes an air outlet 102 and a collection device 600. The collection device 600 is connected to the air outlet 102, allowing the inhaled material entering the suction cylinder 400 to pass through the air outlet 102 into the collection device 600. Specifically, the inhaled material is drawn into the suction cylinder 400, passes through the air outlet 101 to the cutting assembly where it is cut, and then enters the collection device 600 from the air outlet 102. Figure 1 As shown, the suction tube 400 is equipped with hooks for hanging the collection device 600, allowing the collection device 600 to be suspended, occupying little space and facilitating operation. In one embodiment, the collection device 600 may be a kraft paper bag. In another embodiment, the collection device 600 may be a cloth bag. In yet another embodiment, the collection device 600 may be a collection bucket or collection box.

[0087] In some embodiments, the collecting device 600 is made of a conductive material and is capable of conducting static electricity. Optionally, the collecting device 600 may be made of a conductive material, including a woven material containing conductive materials such as metals. When using the airflow device, the fan blades 310 generate a large amount of static electricity through friction with the inhaled material. This static electricity is first conducted to the motor 200, then from the motor 200 to the air outlet 102 and / or the housing assembly 100. Finally, the collecting device 600 can sense the static electricity on the air outlet 102 and / or the housing assembly 100. During use, the collecting device 600 may come into direct or indirect contact with the ground to conduct static electricity from the airflow device to the ground and release it. The specific contact method between the collecting device 600 and the ground is the same as that of the third static electricity conducting component 530, and will not be described again here.

[0088] In some embodiments, the collecting device 600 includes a second electrostatic conduction device 610. The second electrostatic conduction device 610 and the collecting device 600 may be integrated, or they may be separately disposed; this application does not limit the specifics. The second electrostatic conduction device 610 includes a first end 611 connected to the collecting device 600 and a second end 612 located away from the collecting device 600. Optionally, when the collecting device 600 is made of a conductive material, the first end 611 of the second electrostatic conduction device 610 is used to receive static electricity from the collecting device 600 and conduct it to the second end 612. During use, the second end 612 of the second electrostatic conduction device 610 will directly or indirectly contact the ground to release static electricity. The specific contact method between the second end 612 of the second electrostatic conduction device 610 and the ground is the same as that of the third electrostatic conduction component 530, and will not be described again here.

[0089] Optionally, such as Figure 9As shown, the second electrostatic conduction device 610 can be located on the side of the collecting device 600 with the shortest distance from the ground. This allows the second electrostatic conduction device 610 to directly or indirectly contact the ground even when its length is relatively short, saving economic costs. Optionally, the second electrostatic conduction device 610 can also be located in other parts of the collecting device 600; this application does not limit this.

[0090] like Figure 9 As shown, the second electrostatic conduction device 610 can be a conductive wire. Optionally, the second electrostatic conduction device 610 can also have other structural forms, which are not limited in this application. Compared with releasing static electricity by directly or indirectly contacting the collecting device 600 with the ground, setting the second electrostatic conduction device 610 on the collecting device 600 can enable the release of static electricity even when the collecting device 600 is far from the ground and cannot conduct static electricity, making the shape and size of the collecting device 600 more flexible.

[0091] In some embodiments, the airflow device may be equipped with a first electrostatic conduction device 500 and a second electrostatic conduction device 610, so that when the airflow device is used, whether the second end 420 of the suction tube 400 is in direct or indirect contact with the ground, or the collection device 600 is in direct or indirect contact, the static electricity can be conducted to the bottom surface, further reducing the probability of the airflow device being damaged by static electricity.

[0092] In some embodiments, the airflow device further includes a third electrostatic conduction device 700, which includes a first end 710, a second end 720, and a connector 730 connecting the first end 710 and the second end 720. The first end 710 of the third electrostatic conduction device 700 is close to the fan blade 310, with a distance of less than or equal to 15 mm, to sense the static electricity generated by the friction between the fan blade 310 and the inhaled object. Specifically, the first end 710 of the third electrostatic conduction device 700 is closer to the fan blade 310 than the second end 720.

[0093] In some embodiments, the distance between the first end 710 of the third electrostatic conduction device 700 and the fan blade 310 is greater than 1 mm and less than or equal to 15 mm. In some embodiments, the distance between the first end 710 of the third electrostatic conduction device 700 and the fan blade 310 is greater than 1 mm and less than or equal to 10 mm. In some embodiments, the distance between the first end 710 of the third electrostatic conduction device 700 and the fan blade 310 is greater than 1 mm and less than or equal to 5 mm. In some embodiments, the distance between the first end 710 of the third electrostatic conduction device 700 and the fan blade 310 is greater than 1 mm and less than or equal to 3 mm. In some embodiments, the distance between the first end 710 of the third electrostatic conduction device 700 and the fan blade 310 is greater than 3 mm and less than or equal to 5 mm.

[0094] Optionally, such as Figure 10 and 11 As shown, since the static electricity generated by friction on the fan blade 310 can be directly transferred to the motor 200 connected to it, the first end 710 of the third static electricity conduction device 700 can be directly electrically connected to the motor 200 to conduct static electricity. The second end 720 of the third static electricity conduction device 700 is connected to the air outlet 102. The second end 720 of the third static electricity conduction device 700 includes at least one tip, which has the function of releasing static electricity, so that the static electricity conducted from the first end 710 can be released into the air, thereby realizing the static electricity release of the airflow device. Specifically, the tip of the second end 720 of the third static electricity conduction device 700 is located inside the air outlet 102. When the airflow device blows air, the static electricity conducted from the first end 710 is released into the air and neutralized with the charge in the wind, thereby realizing the elimination of static electricity. The second end 720 of the third static electricity conduction device 700 may include two tips, three tips, or four tips, etc. The more tips the second end 720 of the third static electricity conduction device 700 includes, the better the static electricity release effect. In some embodiments, the second end 720 of the third electrostatic conduction device 700 may also be disposed on other structures that can sense the airflow, other than the air outlet, and this application does not limit this.

[0095] In some embodiments, such as Figure 10 and Figure 11As shown, to facilitate the installation of the third electrostatic conduction device 700, the connector 730 for fixing the third electrostatic conduction device 700 can be disposed on the outside of the housing assembly 100, and the second end 720 of the third electrostatic conduction device 700 is disposed inside the air outlet 102 by fixing it to the housing assembly 100. Optionally, the third electrostatic conduction device 700 can also be directly installed inside the housing assembly 100, and the second end 720 of the third electrostatic conduction device 700 can be fixed by providing a fixing component inside the housing assembly 100 or the air outlet 102.

[0096] The third electrostatic conduction device 700 is made of a conductive material. Optionally, the third electrostatic conduction device 700 can be a conductive wire structure as shown in the figure. In addition, the third electrostatic conduction device 700 can also be other conductive structures, which are not limited in this application.

[0097] Optionally, the airflow device may simultaneously be equipped with a first electrostatic conduction device 500, a second electrostatic conduction device 610, and a third electrostatic conduction device 700. Optionally, the airflow device may simultaneously be equipped with any two of the first electrostatic conduction devices 500, the second electrostatic conduction device 610, and the third electrostatic conduction device 700. Optionally, the airflow device may be equipped with only one of the first electrostatic conduction device 500, the second electrostatic conduction device 610, and the third electrostatic conduction device 700; this application is not limited to this. By simultaneously equipping three or two electrostatic conduction devices, the static electricity generated by friction on the fan blades 310 can be eliminated through multiple methods, improving the static electricity elimination effect of the airflow device and further reducing the probability of the airflow device being damaged by static electricity.

[0098] In some embodiments, the airflow device includes a blower 800, which is detachably connected to an air outlet 102. The airflow device can use the blower 800 to collect scattered leaves and other target objects. When the airflow device blows air, the fan blades 310 generate static electricity through friction with the air as they rotate. At this time, the static electricity generated in the airflow device can also be released through a third static electricity conduction device 700.

[0099] like Figure 1 As shown, the airflow device also includes a battery pack 120, with a plug-in structure provided at the rear of the housing assembly 100 (i.e., at the rear of the airflow device), to which the battery pack 120 is detachably plugged. In some embodiments, the plug-in direction of the battery pack 120 forms an angle with the vertical direction, making it easier for the user to install and remove the battery pack 120.

[0100] See Figures 12 to 14The airflow device includes a housing assembly 100, a motor 200, and a fan assembly 300. This application does not limit the arrangement of the fan assembly 300 and the motor 200. The fan assembly 300 can be connected to the motor shaft of the motor 200, and the motor 200 can directly drive the fan assembly 300 to rotate; or, the fan assembly 300 can be not connected to the motor 200, and the motor 200 can indirectly drive the fan assembly 300 to rotate. Figure 12 and Figure 13 This is a schematic diagram of an airflow device in blowing mode, such as... Figure 12 and Figure 13 As shown, the airflow device includes a blower 800, which is detachably mounted on the air outlet 102. The other end of the blower 800, which is not connected to the air outlet 102, forms an outward blowing port. Figure 14 This is a schematic diagram of an airflow device in the suction state, such as... Figure 14 As shown, the airflow device also includes a suction duct 400, which is detachably mounted on the suction port 101. The other end of the suction duct 400, which is not connected to the suction port 101, forms a suction port for drawing in material. Since there is an angle between the suction port 101 and the air outlet 102, the fan assembly 300 includes at least a centrifugal fan 320.

[0101] The fan assembly 300 is connected to the motor shaft of the motor 200. Driven by the motor 200, the motor shaft rotates and synchronously drives the fan assembly 300 to rotate, generating negative pressure. When the airflow device is in blowing mode, airflow enters from the suction port 101, passes through the motor 200, flows to the blowing port 102, and then flows outward through the air blower 400, all based on the fan assembly 300. When the airflow device is in suction mode, the fan assembly 300 provides power for the airflow device to suck up fallen leaves and other debris. The suction port 400 uses negative pressure to suck up the material, which includes, but is not limited to, fallen leaves, dust, twigs, and small stones.

[0102] like Figure 14 As shown, the airflow device also includes a collecting device 600. When the airflow device is in the suction state, the collecting device 600 is connected to the air outlet 102, allowing the inhaled material entering the suction cylinder 400 to enter the collecting device 600 through the air outlet 102. Specifically, the inhaled material is drawn in from the suction cylinder 400, passes through the suction outlet 101 to the cutting component where it is cut, and then enters the collecting device 600 through the air outlet 102. When the airflow device is in the blowing state, the collecting device 600 is removed from the air outlet 102, and the air outlet 800 is connected to the air outlet 102.

[0103] In some embodiments, the hair dryer 800 is a flexible hose with a smooth inner wall, making it easy to store. In some specific embodiments, the hair dryer 800 has a corrugated pipe structure, specifically including a spiral support strip for support and a soft ventilation material covering the spiral support strip. The soft ventilation material can be cotton cloth or plastic sheeting, etc. The flexible hose structure of the hair dryer 800 can be used in various airflow devices that can blow or suck air, such as handheld hair dryers, backpack hair dryers, blow-vacuum cleaners, vacuum cleaners, etc. In some embodiments, the hair dryer 800 is a pipe made of plastic. In some embodiments, the hair dryer 800 is a pipe made of metal with a certain degree of rigidity, making the hair dryer 800 less prone to damage. Furthermore, during the use of the hair dryer 800, the metal material of the hair dryer 800 can directly conduct static electricity to the ground to eliminate static electricity when in direct / indirect contact with the ground.

[0104] The fan assembly 300 includes fan blades 310. When the fan assembly 300 rotates, it draws in external dust and other particles through the air intake 101. During operation, the fan blades 310 rub against these particles, generating static electricity. The airflow device contains electronic components such as a control circuit board. The static electricity generated by the friction between the fan blades 310 and the dust particles is transferred to these electronic components. When the static electricity accumulates to a certain level, it can damage the electronic components, causing them to malfunction and preventing the airflow device from operating properly.

[0105] like Figure 15 and Figure 16 As shown, the airflow device includes a baffle 110, which is circumferentially disposed within the housing assembly 100 around the fan assembly 300, i.e., the baffle 110 surrounds the fan assembly 300. Since the fan assembly 300 needs to communicate with the air outlet 102, the baffle 110 specifically surrounds a portion of the fan assembly 300, and the baffle 110 has a notch for communicating with the air outlet 102. Optionally, the baffle 110 is detachably installed inside the housing assembly 100. Optionally, the baffle 110 is a component of the housing assembly 100, i.e., the baffle 110 and the housing assembly 100 are integrally formed, and the housing assembly 100 directly forms the baffle 110. When the baffle 110 is circumferentially disposed around the fan assembly 300, it includes one end relatively close to the fan assembly 300 and another end relatively far from the fan assembly 300.

[0106] The airflow device includes an electrostatic conduction device 900, which is circumferentially arranged around the fan assembly 300. The electrostatic conduction device 900 includes a first end 910 and a second end 920. The first end 910 is closer to the fan blade 310 than the second end 920, and the second end 920 is closer to the air outlet 102 than the first end 910. The first end 910 is located near the fan blade 310; the second end 920 is located near the air outlet 102. The electrostatic conduction device 900 also includes a connecting section 930 for connecting the first end 910 and the second end 920. The first end 910 senses static electricity on the fan blade 310 and transfers it to the second end 920 through the connecting section 930. The first end 910 and the second end 920 are metal ends, and the connecting section 930 is a conductive strip, making the electrostatic conduction device 900 conductive. Optionally, the first end 910, the second end 920, and the connecting segment 930 may be made of aluminum alloy. Optionally, the first end 910, the second end 920, and the connecting segment 930 may also be made of any other conductive metal material; this application is not limited to any particular material. Optionally, the first end 910 and the second end 920 may be made of any conductive metal material, and the connecting segment 930 may be a wire or other conductor.

[0107] In some embodiments, the electrostatic conduction device 900 is a one-piece metal component, i.e., the first end 910, the second end 920, and the connecting segment 930 are integrally formed. In some embodiments, the first end 910, the second end 920, and the connecting segment 930 are formed separately and then fixedly connected. The connecting material connecting the first end 910, the second end 920, and the connecting segment 930 is a conductive material.

[0108] The electrostatic conduction device 900 is specifically disposed on the baffle 110, surrounding the fan assembly 300. Optionally, the electrostatic conduction device 900 is disposed on the inner side of the baffle 110 (i.e., the side of the baffle 110 closest to the fan assembly 300). Optionally, the electrostatic conduction device 900 is disposed on the outer side of the baffle 110 (i.e., the side of the baffle 110 furthest from the fan assembly 300). Figure 15 and Figure 16 This is an example of an electrostatic conduction device 900 disposed on the outer side of a baffle 110. Since the baffle 110 is detachably disposed within the housing assembly 100, or the baffle 110 is a component of the housing assembly 100, the electrostatic conduction device 900 disposed on the baffle 110 includes being disposed on the inner or outer side of the baffle 110, and also includes being directly disposed on the inner or outer side of the housing assembly 100.

[0109] In some embodiments, the electrostatic conduction device 900 is disposed on the baffle 110, specifically embedded in the baffle 110. A surrounding groove is provided on the outer or inner side of the baffle 110, and the electrostatic conduction device 900 is fixed in the surrounding groove to be embedded in the baffle 110. In some embodiments, the electrostatic conduction device 900 is disposed on the baffle 110, specifically directly fixed to the baffle 110, with the electrostatic conduction device 900 protruding from the baffle 110. This application does not limit the specific fixing method of the electrostatic conduction device 900, whether it is fixed in the surrounding groove or directly fixed to the baffle 110; any fixing method that securely fixes the electrostatic conduction device 900 to the baffle 110 is acceptable. Furthermore, the electrostatic conduction device 900 can also be disposed on the baffle 110 in other ways, which this application does not limit.

[0110] When the electrostatic conduction device 900 is disposed on the inner side or the outer side of the baffle 110, the first end 910 and the second end 920 always include the portion disposed on the inner side of the baffle 110. Specifically, the electrostatic conduction device 900 being disposed on the inner side or the outer side of the baffle 110 means that the connecting section 930 is disposed on the inner or outer side of the baffle 110. In some embodiments, such as... Figure 16 As shown, a first opening 111 is provided on the baffle 110, which matches the first end 910, so that when the electrostatic conduction device 900 is disposed on the outside of the baffle 110, the first end 910 can pass through the first opening 111 and be disposed inside the baffle 110. Figure 17 and Figure 18 As shown, a second opening 112 and a third opening 113 are also provided on the baffle 110. The second opening 112 and the third opening 113 are matched with the second end 920 so that when the electrostatic conduction device 900 is provided on the outside of the baffle 110, the second end 920 first passes through the second opening 112 to the inside of the baffle 110, and then the second end 920 passes through the third opening 113 and is fixed near the third opening 113 on the outside of the baffle 110, so that the second end 920 includes the portion provided on the inner side of the baffle 110.

[0111] The first end 910 of the electrostatic conduction device 900 is positioned close to the fan blade 310. The first end 910 inducts static electricity from the fan blade 310. For example, when the static electricity generated by the friction between the fan blade 310 and dust particles is positive, the previously uncharged first end 910 will generate a negative charge, inducting the positive charge from the fan blade 310. Similarly, if the static electricity generated by the friction between the fan blade 310 and dust particles is negative, the previously uncharged first end 910 will generate a positive charge, inducting the negative charge from the fan blade 310. The second end 920 is located inside the air outlet 102. When the airflow device blows air, the static electricity on the second end 920 is blown into the air, thus eliminating the static electricity. Furthermore, besides the fan blade 310, the baffle 110 and the housing assembly 100 also generate static electricity when rubbing against dust particles; the first end 910 can also induct the static electricity on the baffle 110 and the housing assembly 100.

[0112] Figures 15 to 18 This is a schematic diagram of an embodiment of an electrostatic conduction device 900 disposed on a baffle 110. (See diagram below.) Figure 17 and Figure 18 As shown, the first end 910 of the electrostatic conduction device 900 is disposed on the baffle 110 at one end relatively close to the fan assembly 300, and the second end 920 of the electrostatic conduction device 900 is disposed on the baffle 110 at the other end relatively far from the fan assembly 300. The first end 910 is configured to include at least one tip 911, the distance D1 between the tip 911 and the fan blade 310 is less than or equal to 15 mm, and the shorter distance between the tip 911 and the fan blade 310 enables better sensing of static electricity on the fan blade 310. Specifically, the distance between the tip 911 and the fan blade 310 refers to the distance between the edge of the tip 911 and the edge of the nearest fan blade 310. Optionally, the distance D1 between the tip 911 and the fan blade 310 is 13 mm. Optionally, the distance D1 between the tip 911 and the fan blade 310 is 11.5 mm. Optionally, the distance D1 between the tip 911 and the fan blade 310 is 9 mm. In addition, the first end 910 may include two tips, three tips, or four tips, etc. When the distance D1 between the first end 910 and the fan blade 310 remains unchanged, the more tips are provided on the first end 910, the better the absorption effect of static electricity.

[0113] In some embodiments, the maximum distance D2 between the electrostatic conduction device 900 and the outer edge of the fan blade 310 is less than or equal to 90 mm. Since the first end 910 of the electrostatic conduction device 900 is located on the baffle 110 relatively close to the fan assembly 300, and the second end 920 of the electrostatic conduction device 900 is located on the baffle 110 relatively far from the fan assembly 300, therefore, as... Figure 17As shown, the maximum distance D2 between the electrostatic conduction device 900 and the outer edge of the fan blade 310 is specifically the maximum distance D2 between the second end 920 and the outer edge of the fan blade 310. Optionally, the maximum distance D2 between the electrostatic conduction device 900 and the outer edge of the fan blade 310 is 85 mm. Optionally, the maximum distance D2 between the electrostatic conduction device 900 and the outer edge of the fan blade 310 is 78 mm. Optionally, the maximum distance D2 between the electrostatic conduction device 900 and the outer edge of the fan blade 310 is 73 mm.

[0114] Figure 19 This is a schematic diagram illustrating an embodiment where an electrostatic conduction device 900 is disposed on a baffle 110. In this embodiment, the electrostatic conduction device 900 is disposed on one end of the baffle 110 relatively close to the fan assembly 300, and on the inner side of the baffle 110. The second end 920 is disposed near the air outlet 102. When the airflow device is operating, the first end 910 senses static electricity on the fan blades 310 and transfers the static electricity to the second end 920 through the connecting section 930. The static electricity on the second end 920 is then blown into the air.

[0115] In some embodiments, such as Figure 19 As shown, the minimum straight-line distance D3 between the first end 910 and the second end 920 of the electrostatic conduction device 900 is greater than or equal to 25 mm. Optionally, the minimum straight-line distance D3 between the first end 910 and the second end 920 is 28 mm. Optionally, the minimum straight-line distance D3 between the first end 910 and the second end 920 is 32 mm. Optionally, the minimum straight-line distance D3 between the first end 910 and the second end 920 is 30 mm. In some embodiments, the minimum connecting distance between the first end 910 and the second end 920 of the electrostatic conduction device 900 is greater than or equal to 25 mm, that is, the length of the electrostatic conduction device 900 itself is greater than or equal to 25 mm. Optionally, the length of the electrostatic conduction device 900 is 30 mm. Optionally, the length of the electrostatic conduction device 900 is 32 mm. Optionally, the length of the electrostatic conduction device 900 is 35 mm.

[0116] Figure 20 This is a schematic diagram of an embodiment of an electrostatic conduction device 900 disposed on a baffle 110. (See diagram below.) Figure 20As shown, the first end 910 of the electrostatic conduction device 900 is located on the baffle 110 at one end relatively close to the fan assembly 300, and the second end 920 of the electrostatic conduction device 900 is located on the baffle 110 at the other end relatively far from the fan assembly 300. The connecting section 930 of the electrostatic conduction device 900 directly connects the first end 910 and the second end 920 across the air outlet 102. When the airflow device is working, the first end 910 senses the static electricity on the fan blade 310 and transfers the static electricity to the second end 920 through the connecting section 930. The static electricity on both the connecting section 930 and the second end 920 can be blown into the air.

[0117] By installing an electrostatic conduction device on the baffle of the airflow device, one end of the device senses the static electricity generated on the fan blades, baffle, etc., while the other end is set at the air outlet. The static electricity is blown into the air by the airflow device, thereby eliminating the static electricity on the airflow device. This makes the airflow device less susceptible to damage from static electricity and improves the user experience.

[0118] In some embodiments, at least one of the fan blade 310, baffle 110, and housing assembly 100 is provided with an antistatic material, making it less prone to generating static electricity through friction with dust or other particulate matter during operation. The resistivity of the antistatic material is less than or equal to 10 Ω·cm. 6 The resistivity of the antistatic material is Ω·m, which provides good conductivity when static electricity is generated in the fan blade 310, baffle 110, or housing assembly 100, reducing the probability of damage to the airflow equipment caused by static electricity accumulation in the fan blade 310, baffle 110, or housing assembly 100. Optionally, the resistivity of the antistatic material can be 9 Ω·m. 6 Ω·m. Optionally, the resistivity of the antistatic material can be 10 Ω·m. 5 Ω·m.

[0119] In some embodiments, the airflow device has multiple parts that rub against particles such as dust. This application specifically describes the fan blade 310, baffle 110, and housing assembly 100 as examples. The parts that rub against particles such as dust, including the fan blade 310, baffle 110, and housing assembly 100, are made of two different materials. Optionally, the fan blade 310, baffle 110, or housing assembly 100 may each be made of two different materials. Optionally, any two of the fan blade 310, baffle 110, and housing assembly 100 may be made of a first material, and the remaining one may be made of a second material different from the first material. Optionally, any two of the fan blade 310, baffle 110, and housing assembly 100 may be made of the second material, and the remaining one may be made of a first material different from the first material.

[0120] Based on the concept of electrostatic sequence, when two substances come into contact, the former becomes positively charged and the latter becomes negatively charged. That is, when objects of different materials rub against each other, one object will always carry a positive charge and the other a negative charge. In some embodiments, the first material loses electrons after friction with dust or other particles, thus becoming positively charged. The second material gains electrons after friction with dust or other particles, thus becoming negatively charged. Alternatively, the positive and negative charges between the first and second materials flow back and forth via dust or other particles, thereby eliminating static electricity. This design allows static electricity to be eliminated through the materials themselves in the airflow device, improving the user experience and preventing damage to components in the airflow device from static electricity.

[0121] In some embodiments, a speed measuring device for detecting the linear velocity of the fan assembly 300 is provided on the airflow device. The speed measuring device can be set at any convenient location on the airflow device for detecting the linear velocity of the fan assembly 300; this application does not limit the location of the speed measuring device. Figure 21 As shown, there is a direct proportional relationship between the linear velocity of the fan assembly 300 and the static charge generated on the fan blades 310. When the linear velocity of the fan assembly 300 reaches 85 m / s, the static charge accumulated on the fan blades 310 reaches 6000 V. At this point, a static charge conduction device 900 is needed to eliminate the static electricity on the airflow device. Therefore, if the linear velocity of the fan assembly 300 is consistently less than 85 m / s, the airflow device can operate normally without the static charge conduction device 900. When the linear velocity of the fan assembly 300 is greater than or equal to 85 m / s, a static charge conduction device 900 is required on the airflow device.

[0122] It should be noted that all the technical solutions described in this application may be applied to different airflow devices such as a blower and a suction machine with blowing mode and suction mode. When this application mentions "airflow device", it does not limit the type of airflow device. Any device that does work through the flow of air can be called an "airflow device".

[0123] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this application.

Claims

1. An airflow device, comprising: Housing assembly; The motor is housed within the housing assembly; A fan assembly, including at least fan blades, configured to generate airflow by the motor; The air intake is configured as an airflow inlet. The air vent is configured as an airflow outlet; The airflow device is characterized in that it further includes: An electrostatic conduction device is arranged circumferentially around the fan assembly; The electrostatic conduction device includes a first end located near the fan blade and a second end located near the air outlet.

2. The airflow device as described in claim 1, characterized in that, The airflow device also includes a baffle disposed circumferentially within the housing assembly around the fan assembly.

3. The airflow device as described in claim 2, characterized in that, The baffle is detachably mounted inside the housing assembly.

4. The airflow device as described in claim 2, characterized in that, The baffle is configured as part of the housing assembly.

5. The airflow device as described in claim 2, characterized in that, The electrostatic conduction device is disposed on the inner or outer side of the baffle.

6. The airflow device as described in claim 2, characterized in that, The electrostatic conduction device is embedded in the baffle, with the first end passing through the baffle and close to the fan blade, and the second end passing through the baffle and close to the air outlet.

7. The airflow device as described in claim 1, characterized in that, The electrostatic conduction device is configured as a one-piece metal component.

8. The airflow device as described in claim 1, characterized in that, The electrostatic conduction device further includes a connecting section, which is configured to connect the first end and the second end; the first end and the second end are metal ends; and the connecting section is a conductive strip.

9. The airflow device as described in claim 2, characterized in that, Antistatic materials are added to the fan blades, the baffle, or the housing assembly.

10. The airflow device as described in claim 9, characterized in that, The resistivity of the antistatic material is less than or equal to 10. 6 Ω·m.

11. A blow-suction machine, comprising: Electric motor; A fan assembly, including at least a centrifugal fan, the centrifugal fan being configured to generate airflow by being driven by the motor; The air intake is configured as an airflow inlet. The air vent is configured as an airflow outlet; The blow-suction machine is characterized in that it further includes: An electrostatic conduction device includes a first end and a second end, wherein the first end is closer to the centrifugal fan blades than the second end, and the second end is closer to the air outlet than the first end.

12. The blow-suction machine as described in claim 11, characterized in that, The first end is configured to include at least one tip, the distance between the tip and the fan blade being less than or equal to 15 mm.

13. The blow-suction machine as described in claim 11, characterized in that, The airflow device also includes a baffle plate arranged circumferentially around the fan assembly within the housing assembly of the blower / suction machine.

14. The blow-suction machine as described in claim 13, characterized in that, The baffle is detachably mounted inside the housing assembly.

15. The blow-suction machine as described in claim 13, characterized in that, The baffle is configured as part of the housing assembly.

16. The blow-suction machine as described in claim 13, characterized in that, The electrostatic conduction device is disposed on the inner or outer side of the baffle.

17. The blow-suction machine as described in claim 13, characterized in that, The electrostatic conduction device is embedded in the baffle, with the first end passing through the baffle and approaching the fan blade relative to the second end, and the second end passing through the baffle and approaching the air outlet relative to the first end.

18. The blow-suction machine as described in claim 13, characterized in that, The electrostatic conduction device is configured as a one-piece metal component.

19. The blow-suction machine as described in claim 11, characterized in that, The electrostatic conduction device further includes a connecting section, which is configured to connect the first end and the second end; the first end and the second end are metal ends; and the connecting section is a conductive strip.

20. The blow-suction machine as described in claim 13, characterized in that, Antistatic materials are added to the fan blades, the baffle, or the housing assembly.

21. An airflow device, comprising: Electric motor; A fan assembly, including at least fan blades, configured to generate airflow by the motor; The air intake is configured as an airflow inlet. The air vent is configured as an airflow outlet; The airflow device is characterized in that it further includes: The electrostatic conduction device includes a first end located near the fan blade and a second end located near the air outlet; the maximum distance between the electrostatic conduction device and the outer edge of the fan blade is less than or equal to 90 mm.

22. The airflow device as described in claim 21, characterized in that, The airflow device also includes a baffle plate arranged circumferentially around the fan assembly within the housing assembly of the airflow device.

23. The airflow device as described in claim 22, characterized in that, The electrostatic conduction device is disposed on the inner or outer side of the baffle.

24. The airflow device as described in claim 22, characterized in that, The electrostatic conduction device is embedded in the baffle, with the first end passing through the baffle and close to the fan blade, and the second end passing through the baffle and close to the air outlet.

25. The airflow device as described in claim 21, characterized in that, The electrostatic conduction device further includes a connecting section, which is configured to connect the first end and the second end; the first end and the second end are metal ends; and the connecting section is a conductive strip.

26. An airflow device, comprising: Electric motor; A fan assembly, including at least fan blades, configured to generate airflow by the motor; The air intake is configured as an airflow inlet. The air vent is configured as an airflow outlet; The airflow device is characterized in that it further includes: An electrostatic conduction device includes a first end located near the fan blade and a second end located near the air outlet; the minimum straight-line distance between the first end and the second end of the electrostatic conduction device is greater than or equal to 25 mm.

27. The airflow device as described in claim 26, characterized in that, The airflow device also includes a baffle plate arranged circumferentially around the fan assembly within the housing assembly of the airflow device.

28. The airflow device as described in claim 27, characterized in that, The electrostatic conduction device is disposed on the inner or outer side of the baffle.

29. The airflow device as described in claim 27, characterized in that, The electrostatic conduction device is embedded in the baffle, with the first end passing through the baffle and close to the fan blade, and the second end passing through the baffle and close to the air outlet.

30. The airflow device as described in claim 26, characterized in that, The electrostatic conduction device further includes a connecting section, which is configured to connect the first end and the second end; the first end and the second end are metal ends; and the connecting section is a conductive strip.

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