Blower

Abstract

The utility model relates to an air blower which comprises a main body provided with an air inlet, an air outlet and a main fluid air channel communicating with the air inlet and the air outlet. The handle is fixedly connected with the main body and provided with an auxiliary air opening and an auxiliary fluid channel, and the auxiliary fluid channel communicates with the auxiliary air opening and the main fluid air channel; the airflow generating structure is mounted on the main body and comprises an impeller and a driving motor, the driving motor is connected with the impeller, and the impeller and the driving motor are located in the main fluid air duct; the control panel is installed on the handle and located in the auxiliary fluid channel. The control panel can be prevented from being damaged due to the fact that dust, water and other sundries enter the air blower through the air outlet, when the airflow generation structure operates, airflow needed by work of the air blower is generated through the main fluid air channel, airflow used for cooling the control panel can be formed in the auxiliary fluid channel, and the control panel is prevented from being damaged due to overheating. In addition, the control panel is installed in the auxiliary fluid channel, and the control panel can be prevented from blocking fluid in the main fluid air channel.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning equipment, in particular to a blower. BACKGROUND

[0002] The blower is also known as dust removal gun, dust blowing machine or air blower. The blower drives the impeller to rotate by the motor, so that the fluid is accelerated and sprayed out of the relatively narrow nozzle. The high-speed concentrated fluid is used to clean the surface to be cleaned and blow away the dust and particles on the surface. In some scenarios, the blower can also be used to inflate devices such as air beds, or to blow air to accelerate combustion of carbon in combustion, etc.

[0003] In order to generate high-speed fluid, the motor of the blower usually uses a brushless motor. The brushless motor needs to match a circuit board to control the movement of the rotor.

[0004] In the prior art, the circuit board, the stator and the impeller are arranged in sequence, and the circuit board is close to the air outlet. In this way, the high-speed fluid can quickly take away the heat of the circuit board.

[0005] However, although the circuit board is arranged close to the air outlet, it is beneficial to cool the circuit board, but it will cause a series of problems, for example, the circuit board hinders the movement of the fluid, causing the fluid to be turbulent and reducing the air volume, and also causing noise. For example, the working environment of the dust blowing machine is complex, and the circuit board is close to the air outlet. Dust, water and other debris can easily enter the inner cavity of the blower through the air outlet, causing damage to the circuit board. CONTENT OF THE UTILITY MODEL

[0006] Therefore, it is necessary to provide a blower to solve the problem that the circuit board arranged close to the air outlet in the prior art is easily damaged.

[0007] The present application provides a blower, comprising: a main body provided with an air inlet, an air outlet and a main fluid channel communicating the air inlet and the air outlet; a handle fixedly connected with the main body, the handle being provided with an auxiliary air outlet and an auxiliary fluid channel, the auxiliary fluid channel communicating the auxiliary air outlet and the main fluid channel; an airflow generating structure installed on the main body, comprising an impeller and a driving motor, the driving motor being connected with the impeller, the impeller and the driving motor being located in the main fluid channel; and a control board installed on the handle and located in the auxiliary fluid channel.

[0008] According to one embodiment of the present application, the main body comprises: a wind cylinder, the wind cylinder being sleeved on the outside of the airflow generating structure, one end of the wind cylinder being configured as the air outlet; and a cylinder cover connected with one end of the wind cylinder away from the air outlet, the cylinder cover having a perforation communicating the air inlet and the impeller.

[0009] Preferably, the main body further comprises an air inlet cover located on the side of the barrel cover away from the air duct, the air inlet cover being configured with the air inlet.

[0010] Preferably, the main body further comprises an air inlet filter frame located on the side of the air inlet cover close to the air outlet, and an air inlet filter cotton installed on the air inlet filter frame.

[0011] Preferably, the main body further comprises a first housing and a second housing arranged oppositely, the first housing and the second housing being fixedly connected and both being fixedly connected with the handle, the first housing and the second housing being fixedly arranged on the outer side of the air duct, the barrel cover and the air inlet filter frame, and one end of the first housing and the second housing being fixedly connected with the air inlet cover.

[0012] Preferably, the main body further comprises a first sealing member located between the air duct and the barrel cover, and / or a second sealing member located between the barrel cover and the airflow generating structure, and / or a damping member located between the air duct and the airflow generating structure.

[0013] According to one embodiment of the present application, the airflow generating structure further comprises a motor housing installed in the air duct and sleeved on the outer side of the driving motor, and the impeller is located at one end of the motor housing; the chamber between the motor housing and the driving motor constitutes a partial section of the main fluid air duct.

[0014] Preferably, the air duct is provided with a tapered portion, the inner hole of the tapered portion being tapered from the end close to the air inlet to the end away from the air inlet; the airflow generating structure further comprises an air outlet diffusion sleeve installed in the air duct, one end of the air outlet diffusion sleeve being in communication with the end of the motor housing away from the impeller, and the other end of the air outlet diffusion sleeve being provided with a flexible lip, the flexible lip abutting against the inner wall of the tapered portion; the inner cavity of the air outlet diffusion sleeve constitutes a partial section of the main fluid air duct.

[0015] Preferably, the inner wall of the tapered portion is provided with at least one air guide rib extending along the extension direction of the inner hole of the tapered portion.

[0016] Preferably, the radius of the air outlet is smaller than the outer diameter of the impeller.

[0017] Preferably, the ratio of the radius of the air outlet to the outer diameter of the impeller is less than or equal to 1 / 2.

[0018] According to one embodiment of the present application, the handle comprises a third shell and a fourth shell, the third shell is arranged opposite to the fourth shell and fixedly connected with the fourth shell, the third shell and the fourth shell are both fixedly connected with the main body, the auxiliary fluid passage is located between the third shell and the fourth shell, and the auxiliary air outlet is located on the third shell and / or the fourth shell.

[0019] Preferably, the main body comprises a first shell and a second shell, the first shell is fixedly connected with the third shell, and the second shell is fixedly connected with the fourth shell.

[0020] Preferably, the second shell and the third shell are integrally formed, and / or the second shell and the fourth shell are integrally formed.

[0021] According to one embodiment of the present application, the handle further comprises a mounting cavity located between the third shell and the fourth shell, the mounting cavity is used for mounting the control panel.

[0022] Preferably, the mounting cavity is provided with a first interface in communication with the main fluid air duct and a second interface in communication with the auxiliary air outlet, and an inner cavity of the mounting cavity is configured as a partial section of the auxiliary fluid passage.

[0023] According to one embodiment of the present application, the handle further comprises a pipe, a first end of the pipe is in communication with the inner cavity of the mounting cavity through the second interface, a second end of the pipe is in communication with the main fluid air duct, and an inner hole of the pipe is configured as a partial section of the auxiliary fluid passage.

[0024] Preferably, the second end of the pipe is provided with a first branch pipe, the first branch pipe is in communication with the main fluid air duct, and a connection node of the first branch pipe and the main fluid air duct is located on a side of the impeller close to the air inlet.

[0025] Preferably, the main body comprises a wind tube, and the airflow generating structure comprises a motor housing, an isolation cavity is formed between the wind tube and the motor housing; the second end of the pipe is provided with a second branch pipe, the second branch pipe is in communication with an inner cavity of the motor housing through the isolation cavity.

[0026] Preferably, the pipe comprises a flexible pipe.

[0027] Preferably, the pipe further comprises a support arranged in the flexible pipe.

[0028] Preferably, the support adopts a spiral structure, and the support spirally extends along the flexible pipe.

[0029] According to one embodiment of the present application, the fan further comprises a trigger mounted on the handle, the trigger being electrically connected to the control board, and the control board being electrically connected to the driving motor, the trigger being used to control the start and stop of the driving motor.

[0030] Preferably, the fan further comprises a lock mounted on the handle, the lock being used to lock the trigger, and an unlocking button mounted on the handle and connected to the lock, the unlocking button being used to unlock the trigger.

[0031] Preferably, in the extension direction of the handle, the control board is located on the side of the trigger away from the main body, and the auxiliary air outlet is located on the side of the control board away from the trigger.

[0032] According to one embodiment of the present application, the auxiliary air outlet is opposite to the air outlet in orientation.

[0033] According to one embodiment of the present application, the fan further comprises a battery pack detachably mounted on the handle, the battery pack being electrically connected to the control board when the battery pack is connected to the handle, and / or a wiring terminal mounted on the main body or the handle, the wiring terminal being electrically connected to the control board, the wiring terminal being used to externally connect a power source.

[0034] According to one embodiment of the present application, the fan comprises a battery pack, a wind-guiding gap is formed between the battery pack and the handle, the auxiliary air outlet is located in the wind-guiding gap, and the auxiliary air outlet is in communication with the external environment through the wind-guiding gap.

[0035] Preferably, the fan comprises a battery pack, the battery pack is provided with a port, and the port is used to connect an electric device.

[0036] The fan described above has the control board mounted on the handle and away from the air outlet, so that dust, water and other sundries cannot enter the fan through the air outlet and damage the control board. The auxiliary fluid passage is in communication with the main fluid air duct, and when the airflow generating structure operates, in addition to the airflow required for the operation of the fan generated through the main fluid air duct, an airflow for cooling the control board can also be formed in the auxiliary fluid passage, so as to prevent the control board from being damaged due to overheating. In addition, the control board is mounted in the auxiliary fluid passage, so that the fluid in the main fluid air duct is not hindered by the control board. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a fan according to one embodiment of the present application.

[0038] Figure 2 FIG. 2 is a schematic diagram of the internal structure of a fan according to one embodiment of the present application.

[0039] Figure 3 An exploded view of a blower provided by an embodiment of the present application.

[0040] Figure 4 An internal structure diagram of a main body in a blower provided by an embodiment of the present application.

[0041] Figure 5 An internal structure diagram of an airflow generating structure in a blower provided by an embodiment of the present application.

[0042] Figure 6 An exploded view of an airflow generating structure in a blower provided by an embodiment of the present application.

[0043] Figure 7 An internal structure diagram of a duct in a blower provided by an embodiment of the present application.

[0044] Figure 8 An internal structure diagram of an auxiliary fluid passage in a blower provided by an embodiment of the present application.

[0045] Figure 9 An internal structure diagram of a main body in a blower provided by another embodiment of the present application.

[0046] Figure 10 An internal structure diagram of an air outlet assembly in a blower provided by an embodiment of the present application.

[0047] Figure 11 An exploded view of an air outlet assembly in a blower provided by an embodiment of the present application.

[0048] Figure 12 A cooperation structure diagram of a first air outlet nozzle and a second air outlet nozzle in a blower provided by an embodiment of the present application.

[0049] Figure 13 A cooperation structure diagram of a first air outlet nozzle and a second air outlet nozzle in a blower provided by an embodiment of the present application.

[0050] Figure 14 A cooperation structure diagram of a first air outlet nozzle and a third air outlet nozzle in a blower provided by an embodiment of the present application.

[0051] Reference signs: 100, main body; 110, duct; 111, air outlet; 112, air guide rib; 120, cover; 130, first sealing member; 140, second sealing member; 150, damping member; 160, air inlet cover; 161, air inlet; 170, main fluid passage; 180, isolation cavity; 190, air inlet filter frame; 191, air inlet filter cotton; 1010, first housing; 1020, second housing;

[0052] 200, handle; 210, auxiliary fluid channel; 211, mounting cavity; 2111, first interface; 221, pipe; 2211, first branch pipe; 2212, second branch pipe; 230, support; 240, trigger; 250, lock catch; 260, unlocking button; 270, auxiliary air outlet; 2010, third shell; 2020, fourth shell;

[0053] 300, air flow generating structure; 310, impeller; 320, driving motor; 330, motor housing; 340, air outlet diffusion sleeve; 341, flexible lip;

[0054] 400, control board; 410, MOS tube;

[0055] 500, battery pack;

[0056] 700, air outlet assembly; 710, first air outlet nozzle; 720, second air outlet nozzle; 730, blocking piece; 740, third air outlet nozzle; 750, fourth air outlet nozzle; 760, accessory rack. DETAILED DESCRIPTION

[0057] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described and it is to be understood that the present application is not limited to the specific embodiments described below.

[0058] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0059] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, if there are terms "a plurality of", the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0060] In the present application, unless otherwise explicitly specified and limited, if there are terms "installation", "connection", "connection", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0061] In the present application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on" or "second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be the first feature directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" of the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0062] It should be noted that if an element is referred to as "fixed to" or "provided to" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for the purpose of illustration, and do not represent the only implementation.

[0063] In combination Figures 1 to 4 , Figure 1 An overall structure schematic diagram of a blower provided by an embodiment of the present application is provided; Figure 2 An internal structure schematic diagram of a blower provided by an embodiment of the present application is provided; Figure 3 An explosion diagram of a blower provided by an embodiment of the present application is provided; Figure 4An internal structure diagram of a main body of a blower is provided in an embodiment of the present application. Wherein, Figure 2 and Figure 4 The arrow in the above figure indicates the direction of air flow. The blower provided in an embodiment of the present application comprises a main body 100, a handle 200, an air flow generating structure 300 and a control board 400. The main body 100 is provided with an air inlet 161, an air outlet 111 and a main fluid air duct 170 connecting the air inlet 161 and the air outlet 111. The handle 200 is fixedly connected with the main body 100, and the handle 200 is provided with an auxiliary air outlet 270 and an auxiliary fluid passage 210, the auxiliary fluid passage 210 connecting the auxiliary air outlet 270 and the main fluid air duct 170. The air flow generating structure 300 is installed on the main body 100, and the air flow generating structure 300 comprises an impeller 310 and a driving motor 320, the driving motor 320 being connected with the impeller 310, and the impeller 310 and the driving motor 320 being located in the main fluid air duct 170. The control board 400 is installed on the handle 200 and located in the auxiliary fluid passage 210.

[0064] When the driving motor 320 operates, the impeller 310 can be driven to rotate, thereby forming air flow from the air inlet 161 to the air outlet 111 in the main fluid air duct 170, and forming air flow in the auxiliary fluid passage 210 at the same time. The air flow formed in the auxiliary fluid passage 210 can take away the heat on the control board 400, thereby cooling and lowering the temperature of the control board 400.

[0065] In the embodiment, the control board 400 is installed in the auxiliary fluid passage 210 of the handle 200, which can avoid the control board 400 from hindering the air flow in the main fluid air duct 170 and preventing the air flow in the main fluid air duct 170 from being turbulent, and the control board 400 can be prevented from being damaged by sundries entering the interior of the blower from the air outlet 111.

[0066] It can be understood that the auxiliary fluid passage 210 can be used as an air outlet passage or an air inlet passage. Specifically, in one alternative form, when the impeller 310 rotates to form air flow in the main fluid air duct 170, part of the air flow in the main fluid air duct 170 flows into the auxiliary fluid passage 210; in another alternative form, when the impeller 310 rotates to form air flow in the main fluid air duct 170, air flow can be formed in the auxiliary fluid passage 210 towards the main fluid air duct 170 due to the decrease of air pressure in the main fluid air duct 170. Both of the above-mentioned alternative forms can cool the control board 400.

[0067] Preferably, the auxiliary fluid passage 210 serves as an air inlet passage, that is, when the impeller 310 rotates to form an air flow in the main fluid passage 170, an air flow is formed in the auxiliary fluid passage 210 and flows to the main fluid passage 170. In this case, the air flow in the auxiliary fluid passage 210 can flow out through the air outlet 111 together with the air flow in the main fluid passage 170, thereby ensuring good air outlet effect.

[0068] Optionally, the extension direction of the handle 200 intersects with the extension direction of the main body 100, in other words, an angle is formed between the handle 200 and the main body 100. In the embodiment, the angle between the handle 200 and the main body 100 is not specifically limited, for example, an angle of 90° to 120° is formed between the handle 200 and the part of the main body 100 close to the air outlet 111. In this way, the user can use the handle 200 as a holding part.

[0069] Optionally, in the direction of the air flow in the main fluid passage, the driving motor 320 is located downstream of the impeller 310, so that the air flow generated by the impeller 310 can better cool the driving motor 320.

[0070] In some embodiments of the present application, the main body 100 includes a wind tube 110 and a tube cover 120, wherein the wind tube 110 is sleeved outside the air flow generating structure 300, one end of the wind tube 110 is configured as the air outlet 111, and the other end faces the air inlet 161. The tube cover 120 is connected to the end of the wind tube 110 away from the air outlet 111 (i.e., the end facing the air inlet 161), and the tube cover 120 has a perforation communicating the air inlet 161 and the impeller 310.

[0071] The wind tube 110 and the tube cover 120 in the embodiment can play the role of guiding and rectifying the air flow, so that the air flow generated by the impeller 310 can flow out through the perforation on the tube cover 120 and the inner cavity of the wind tube 110 in turn. In this process, the air flow can cool the driving motor 320 located in the wind tube 110, and better air outlet effect can be achieved under the action of the wind tube 110.

[0072] Optionally, the wind tube 110 is provided with a tapered portion, and the inner hole of the tapered portion tapers from the end close to the air inlet 161 to the end away from the air inlet 161. The tapering of the inner hole of the tapered portion from the end close to the air inlet 161 to the end away from the air inlet 161 means that the cross-sectional size of the inner hole of the tapered portion gradually decreases from the end close to the air inlet 161 to the end away from the air inlet 161. For example, in the case where the cross-sectional shape of the inner hole of the tapered portion is circular, the diameter of the inner hole of the tapered portion gradually decreases from the end close to the air inlet 161 to the end away from the air inlet 161.

[0073] Further, the side wall of the tapered portion is tapered from the end close to the air inlet 161 to the end away from the air inlet 161. In this way, the wall thickness of the tapered portion is uniform, which is conducive to preventing stress concentration, improving structural strength, and reducing processing difficulty.

[0074] By providing the tapered portion on the air duct 110, the airflow in the air duct 110 can be converged after passing through the driving motor 320 and then discharged from the air outlet 111. On the one hand, the flow rate of the airflow at the air outlet 111 can be improved. On the other hand, during the convergence of the airflow, the tapered portion can function as a flow straightener to avoid airflow turbulence.

[0075] Optionally, the air duct 110 is provided with a first extension portion and a second extension portion. The first extension portion and the second extension portion are arranged at two ends of the air duct 110. The first extension portion is provided with the air outlet 111, and the second extension portion is sleeved outside the driving motor 320. The inner holes of the first extension portion and the second extension portion are cylindrical holes. The inner diameters of the inner holes of the first extension portion are the same at the end close to the air outlet 111. The inner diameters of the inner holes of the second extension portion are the same as the inner diameters of the end of the tapered portion away from the air outlet 111. The airflow reaches the tapered portion through the inner holes of the second extension portion, converges in the tapered portion, and then flows out along the first extension portion.

[0076] Optionally, the outer wall of the first extension portion is provided in a stepped structure or provided with a clamping structure, etc., so as to be connected with other accessories.

[0077] In some embodiments, the radius of the air outlet 111 is smaller than the outer diameter of the impeller 310, so as to achieve air convergence and achieve better air outlet effect.

[0078] Preferably, the ratio of the radius of the air outlet 111 to the outer diameter of the impeller is less than or equal to 1 / 2.

[0079] It is worth noting that the radius of the air outlet 111 is designed to be smaller than the outer diameter of the impeller 310, which can achieve better air outlet effect, but can also easily cause the temperature inside the main body 100 to rise, thereby easily damaging the control panel 400. In the embodiments of the present application, the installation of the control panel 400 in the auxiliary fluid channel 210 of the handle 200 can avoid the adverse effects of the temperature rise of the main body 100 on the control panel.

[0080] In some embodiments, the main body 100 further comprises an air inlet cover 160 located on the side of the cylinder cover 120 away from the air duct 110. The air inlet cover 160 is configured with an air inlet 161. The air inlet cover 160 can function as a shielding function. For example, the air inlet cover 160 is provided with a plurality of hollow holes, and the plurality of hollow holes constitute the air inlet 161. Adjacent hollow holes have a separation structure. In this way, the air inlet cover 160 can block particles and other impurities larger than the hollow holes through the separation structure, thereby protecting the driving motor 320 and the impeller 310 components inside the air blower.

[0081] In some embodiments, the main body 100 further comprises an air inlet filter frame 190 and an air inlet filter cotton 191. The air inlet filter frame 190 is located on the side of the air inlet cover 160 close to the air outlet 111, and a plurality of air-permeable holes are arranged on the air inlet filter frame 190 for the gas to flow through. The size of the air-permeable holes is smaller than that of the air inlet filter cotton 191, and the adjacent air-permeable holes have a blocking structure. The air inlet filter cotton 191 is installed on the air inlet filter frame 190, specifically, the air inlet filter cotton 191 is installed on the side of the air inlet filter frame 190 close to the air inlet cover 160.

[0082] After the fluid enters the main fluid duct through the air inlet 161, it can pass through the air inlet filter cotton 191 and the air-permeable holes on the air inlet filter frame 190. In this process, the air inlet filter cotton 191 can filter the dust and other small impurities carried by the fluid, further improving the cleanliness of the airflow, and preventing the driving motor 320, impeller 310 and other components in the air blower from being damaged.

[0083] Optionally, the air inlet filter frame 190 and the air inlet cover 160 are detachably connected, and the specific connection manner of the air inlet filter frame 190 and the air inlet cover 160 is not limited here, for example, it can be clamped, threaded connection, etc. The air inlet filter cotton 191 is located between the air inlet filter frame 190 and the air inlet cover 160. The air inlet filter frame 190 and the air inlet cover 160 can clamp and limit the air inlet filter cotton 191, ensuring the stability of the structure and position of the air inlet filter cotton 191, thereby ensuring good filtering effect. The detachable connection of the air inlet filter frame 190 and the air inlet cover 160 can facilitate production and replacement of the air inlet filter cotton 191.

[0084] In some embodiments, the main body 100 further comprises a first shell 1010 and a second shell 1020 arranged oppositely. The first shell 1010 and the second shell 1020 are both arc-shaped plates similar to semi-cylinders. The first shell 1010 and the second shell 1020 are fixedly connected and both fixedly connected with the handle 200. The first shell 1010 and the second shell 1020 are fixedly arranged on the outer side of the air duct 110, the duct cover 120 and the air inlet filter frame 190. One end of the first shell 1010 and the second shell 1020 is fixedly connected with the air inlet cover 160.

[0085] The first shell 1010 and the second shell 1020 can position the air duct 110, the duct cover 120, the air inlet filter frame 190 and the air inlet cover 160, so that the relative positions of the air duct 110, the duct cover 120, the air inlet filter frame 190 and the air inlet cover 160 are fixed. In addition, the first shell 1010 and the second shell 1020 can also protect the air duct 110, the duct cover 120, the air inlet filter frame 190, the air inlet cover 160 and other internal components such as the airflow generating structure 300.

[0086] In this embodiment, the first shell 1010 and the second shell 1020 are detachably connected or non-detachably connected, preferably, the first shell 1010 and the second shell 1020 are detachably connected, for example, the first shell 1010 and the second shell 1020 are connected by bolts or screws, or the first shell 1010 and the second shell 1020 are clamped.

[0087] Optionally, the inner side of the first shell 1010 and / or the second shell 1020 is provided with a plurality of limiting ribs for limiting at least one of the air duct 110, the duct cover 120, the air inlet filter frame 190 and the air inlet cover 160, and the limiting ribs can also improve the structural strength of the first shell 1010 and / or the second shell 1020 and prolong the service life of the air blower.

[0088] Optionally, the first shell 1010 and the second shell 1020 are sealingly connected, and the first shell 1010 and the second shell 1020 are sealingly connected with the air duct 110, the duct cover 120, the air inlet filter frame 190 and the air inlet cover 160, which improves the overall sealing performance of the main body 100, thereby improving the air outlet effect and avoiding dust and other sundries entering the air blower through the gap between the first shell 1010 and the second shell 1020 and the gap between the first shell 1010 and the second shell 1020 and the air duct 110, the duct cover 120, the air inlet filter frame 190 and the air inlet cover 160.

[0089] In some embodiments, the main body 100 further comprises a first sealing member 130, which can be a sealing ring, and the first sealing member 130 is located between the air duct 110 and the duct cover 120. The first sealing member 130 can increase the sealing performance between the air duct 110 and the duct cover 120, avoid air flow through the gap between the air duct 110 and the duct cover 120, and also help to improve the mute effect of the air blower.

[0090] Optionally, the duct cover 120 is provided with an annular groove towards the first end of the air duct 110, the first sealing member 130 is located in the annular groove, and the end of the air duct 110 towards the duct cover 120 abuts against the first sealing member 130.

[0091] Optionally, the air duct 110 and the first sealing member 130 are both located in the annular groove of the duct cover 120 towards the end of the air duct 110. In this way, the sealing performance between the air duct 110 and the duct cover 120 can be further improved, and the connection strength between the air duct 110 and the duct cover 120 can be increased.

[0092] In some embodiments, the main body 100 further comprises a second seal 140, which is an annular member, and is located between the cylinder cover 120 and the airflow generating structure 300. Exemplarily, the second seal 140 is sleeved on the outside of the airflow generating structure 300 and is located on the inside of the cylinder cover 120, and is attached to the airflow generating structure 300 and the cylinder cover 120, respectively.

[0093] The second seal 140 can be an elastic member. On the one hand, the second seal 140 is conducive to improving the sealing between the airflow generating structure 300 and the cylinder cover 120, so as to ensure that all the airflow passing through the cylinder cover 120 enters the airflow generating structure 300. On the other hand, the second seal 140 can be elastically deformed to realize the floating of the airflow generating structure 300 in the radial and axial directions, thereby reducing the noise of the airflow generating structure 300.

[0094] In some embodiments, the main body 100 further comprises a damping member 150, which is located between the air duct 110 and the airflow generating structure 300. The damping member 150 can be a damping soft rubber, and is located in the gap between the inside of the air duct 110 and the airflow generating structure 300. The damping member 150 can be elastically deformed to realize the floating of the airflow generating structure 300 in the radial and axial directions, thereby reducing the noise of the airflow generating structure 300.

[0095] Optionally, a plurality of damping members 150 are arranged, and the plurality of damping members 150 are annularly arranged on the outside of the airflow generating structure 300, so as to damp the airflow generating structure 300 in different directions.

[0096] In combination with Figure 5 and Figure 6 In some embodiments, the airflow generating structure 300 further comprises a motor housing 330, which is installed in the air duct 110 and is sleeved on the outside of the driving motor 320, and the impeller 310 is located at one end of the motor housing 330. The chamber between the motor housing 330 and the driving motor 320 constitutes a part of the main fluid air duct 170.

[0097] The airflow generated by the impeller 310 can pass through the motor housing 330. The motor housing 330 can limit the airflow around the driving motor 320, improve the cooling effect of the driving motor 320, prevent the airflow from being disturbed, and improve the air outlet effect of the air blower. The motor housing 330 can also support the driving motor 320 to improve the stability of the operation of the driving motor 320, and protect the driving motor 320.

[0098] In some embodiments, the airflow generating structure 300 further comprises an air outlet diffusion sleeve 340, which is installed in the air duct 110 and communicates with one end of the motor housing 330 away from the impeller 310, and is provided with a flexible lip 341 at the other end, which abuts against the inner wall of the tapered portion. The inner cavity of the air outlet diffusion sleeve 340 is configured as a partial section of the main fluid air duct 170.

[0099] In this embodiment, the air outlet diffusion sleeve 340 is located on the side of the motor housing 330 facing the air outlet 111. In the airflow direction, the impeller 310, the driving motor 320 and the air outlet diffusion sleeve 340 are arranged in sequence, the motor housing 330 is located on the outer side of the driving motor 320, one end of the motor housing 330 is connected with the impeller 310 and forms a seal, and the other end is connected with the air outlet diffusion sleeve 340 and forms a seal. Furthermore, the impeller 310 is connected with the cylinder cover 120 through the second sealing member 140, and the air outlet diffusion sleeve 340 is connected with the inner wall of the air duct 110.

[0100] The air outlet diffusion sleeve 340 is provided with a flexible lip 341, which abuts against the inner wall of the tapered portion in the air duct 110. On the one hand, it facilitates the sealing between the air outlet diffusion sleeve 340 and the air duct 110, ensuring that all the airflow in the motor housing 330 passes through the air outlet diffusion sleeve 340 into the air duct 110 and then flows out through the air outlet 111. On the other hand, the flexible lip 341 can be deformed to achieve flexible contact between the air outlet diffusion sleeve 340 and the air duct 110, allowing the airflow generating structure 300 to float in the radial and axial directions, thereby reducing the noise of the airflow generating structure 300.

[0101] Optionally, the diameter of the flexible lip 341 gradually increases from the end close to the motor housing 330 to the end connected with the tapered portion, which can make the flexible lip 341 more easily form a seal with the tapered portion, and the air in the motor housing 330 can be more easily guided into the air duct 110 through the flexible lip 341.

[0102] Optionally, one end of the air outlet diffusion sleeve 340 is sleeved on the outer side of the motor housing 330 and closely adheres to the motor housing 330, so as to improve the sealing performance of the connection position between the air outlet diffusion sleeve 340 and the motor housing 330, and prevent gas from flowing out between the motor housing 330 and the air outlet diffusion sleeve 340.

[0103] Optionally, the end of the motor housing 330 facing the air outlet diffusion sleeve 340 is provided with a shielding grille, which can protect the driving motor 320 and the impeller 310 from damage caused by foreign matter entering the motor housing 330 through the air outlet 111. Further, it can also protect the control board 400.

[0104] In combination withFigure 7 In some embodiments, the inner wall of the tapered portion is provided with at least one air guide rib 112 extending along the extension direction of the inner hole of the tapered portion.

[0105] Optionally, the inner wall of the tapered portion is provided with a plurality of air guide ribs 112 arranged along the circumference of the tapered portion.

[0106] By providing the air guide rib 112, the airflow entering the tapered portion can be guided, avoiding the formation of rolling flow or vortex, and improving the blowing effect.

[0107] Optionally, the end of the air guide rib 112 away from the air outlet 111 abuts against the flexible lip 341 of the air outlet diffusion sleeve 340, which is beneficial to improve the overall stability and reduce noise. When the number of air guide ribs 112 is multiple, the multiple air guide ribs 112 abut against the flexible lip 341 of the air outlet diffusion sleeve 340 at the same time, which is beneficial to avoid the axial movement or deflection of the airflow structure 300.

[0108] See Figure 3 In some embodiments of the present application, the handle 200 includes a third shell 2010 and a fourth shell 2020, the third shell 2010 and the fourth shell 2020 are oppositely arranged and fixedly connected, the third shell 2010 and the fourth shell 2020 are both fixedly connected with the main body 100, the auxiliary fluid channel 210 is located between the third shell 2010 and the fourth shell 2020, and the auxiliary air outlet 270 is located in the third shell 2010 and / or the fourth shell 2020.

[0109] The third shell 2010 and the fourth shell 2020 are both arc-shaped plates similar to semi-cylinders, the third shell 2010 and the fourth shell 2020 are oppositely arranged and connected with each other, and can be combined to form a cylindrical structure similar to a cylinder, the cylindrical structure formed by the third shell 2010 and the fourth shell 2020 can facilitate the user to hold, and the cavity formed in the third shell 2010 and the fourth shell 2020 creates conditions for the arrangement of the auxiliary fluid channel 210 and the installation of components such as the control panel 400.

[0110] The auxiliary air outlet 270 is located in the third shell 2010 and / or the fourth shell 2020, air can enter the third shell 2010 and the fourth shell 2020 through the auxiliary air outlet 270, and enter the main fluid air duct through the auxiliary fluid channel 210.

[0111] Optionally, in the case where the main body 100 includes a first shell 1010 and a second shell 1020, the first shell 1010 is fixedly connected with the third shell 2010, and the second shell 1020 is fixedly connected with the fourth shell 2020, so that the main body 100 and the handle 200 are combined as a whole, improving the structural stability.

[0112] Further, the second shell 1020 and the third shell 2010 and / or the second shell 1020 and the fourth shell 2020 are integrally formed. Preferably, the second shell 1020 and the third shell 2010 are integrally formed, and the second shell 1020 and the fourth shell 2020 are integrally formed. In this way, the structural strength and sealing performance of the connection position between the second shell 1020 and the third shell 2010 and / or the connection position between the second shell 1020 and the fourth shell 2020 can be improved, and the production and installation difficulty and cost can be reduced.

[0113] In some embodiments, the handle 200 further comprises a mounting cavity 211 located between the third shell 2010 and the fourth shell 2020, and the mounting cavity 211 is used to mount the control panel 400. The mounting cavity 211 in the present embodiment can be formed by connecting a plurality of separate structures, or can be an integrally formed structure. The control panel 400 is fixed in the mounting cavity 211 by, for example, screwing or clamping, so that the mounting cavity 211 can fix and protect the control panel 400 in the mounting cavity 211.

[0114] Optionally, the mounting cavity 211 is provided with a first interface 2111 in communication with the main fluid air duct 170 and a second interface in communication with the auxiliary air port 270, and the inner cavity of the mounting cavity 211 is configured as a partial section of the auxiliary fluid channel 210. For example, the mounting cavity 211 is a long strip-shaped cylindrical structure, and the extension direction of the mounting cavity 211 is parallel or approximately parallel to the extension direction of the handle 200. The first interface 2111 is located at one end of the mounting cavity 211, and the second interface is located at the other end of the mounting cavity 211. After the air enters the handle 200 through the auxiliary air port 270, it enters the mounting cavity 211 through the second interface, flows along the mounting cavity 211, cools the control panel 400 in the mounting cavity 211, and enters the main fluid air duct 170 through the first interface 2111.

[0115] In combination Figure 8 In some embodiments, the handle 200 further comprises a pipe 221, the first end of the pipe 221 is in communication with the inner cavity of the mounting cavity 211 through the second interface, the second end of the pipe 221 is in communication with the main fluid air duct 170, and the inner hole of the pipe 221 is configured as a partial section of the auxiliary fluid channel 210. The air in the mounting cavity 211 can enter the pipe 221 through the first interface 2111 and flow into the main fluid air duct 170 through the pipe 221. By providing the pipe 221, the communication between the mounting cavity 211 and the main fluid air duct 170 can be more easily achieved, and the sealing performance of the auxiliary fluid channel 210 can be improved, preventing the air in the auxiliary fluid channel 210 from flowing out from other positions, and improving the cooling effect of the control panel 400 and the air outlet effect of the air blower.

[0116] In an alternative, the second end of the pipe 221 is provided with a first branch pipe 2211, the first branch pipe 2211 is in communication with the main fluid duct 170, and the connection node of the first branch pipe 2211 with the main fluid duct 170 is located at the side of the impeller 310 close to the air inlet 161. At least part of the air in the pipe 221 flows to the side of the impeller 310 close to the air inlet 161 through the first branch pipe 2211, and then continues to flow along the main fluid duct 170 after being accelerated by the impeller 310. By the first branch pipe 2211, at least part of the air in the pipe 221 can be guided into the main fluid duct 170, not only achieving the cooling of the control panel 400, but also when the air inlet 161 is blocked by foreign matter, still being able to provide air to the upstream of the impeller 310 through the first branch pipe 2211, thereby ensuring that the impeller 310 can form an air flow flowing through the drive motor 320, preventing the drive motor 320 from overheating and damaging, and effectively improving the use safety and service life.

[0117] In another alternative, in the case that the main body 100 includes the air duct 110, and the air flow generating structure 300 includes the motor housing 330, an isolation cavity 180 is formed between the air duct 110 and the motor housing 330, which can be used for fixing the motor housing 330 and mounting the damping member 150, and the second end of the pipe 221 is provided with a second branch pipe 2212, the second branch pipe 2212 passes through the isolation cavity 180 and is in communication with the inner cavity of the motor housing 330. At least part of the air in the pipe 221 flows into the motor housing 330 through the second branch pipe 2212, and then flows out through the air outlet 111 after mixing with the air in the motor housing 330.

[0118] In yet another alternative, the second end of the pipe 221 is respectively provided with the first branch pipe 2211 and the second branch pipe 2212 described above. In this scheme, the pipe 221 is a three-way pipe, which is in communication with the mounting cavity 211, the motor housing 330, and the side of the impeller 310 of the main fluid duct 170 close to the air inlet 161, respectively. The air in the mounting cavity 211 enters the main fluid duct 170 in two ways.

[0119] In the embodiment, the pipe 221 can adopt any one of the above three alternatives, and preferably, the pipe 221 adopts the scheme that the second end is respectively provided with the first branch pipe 2211 and the second branch pipe 2212 described above.

[0120] Optionally, the control panel 400 is provided with a MOS tube 410, the MOS tube 410 is located at a position adjacent to the first interface 2111 in the mounting cavity 211, and the MOS tube 410 serves as a main heat generating element, and the position of the MOS tube 410 in the mounting cavity 211 adjacent to the first interface 2111 is conducive to improving the heat dissipation efficiency.

[0121] In some embodiments, the pipeline 221 comprises a flexible pipe configured to allow deformation. The pipeline 221 in this embodiment can be configured such that part of the pipeline 221 adopts a flexible pipe, and the rest adopts a rigid pipe, or the entire pipeline 221 adopts a flexible pipe. Both of these configurations of the pipeline 221 can deform to a certain extent to meet the deformation requirements such as bending and flattening during installation.

[0122] Optionally, the pipeline 221 further comprises a support 230 arranged in the flexible pipe. The support 230 can support the flexible pipe and can deform elastically. On the one hand, the support 230 can prevent the flexible pipe from being excessively compressed and ensure air circulation in the flexible pipe. On the other hand, the support 230 can allow the flexible pipe to deform according to installation requirements.

[0123] For example, the support 230 is arranged in the peripheral wall of the flexible pipe and is wrapped by the peripheral wall of the flexible pipe.

[0124] Optionally, the support 230 adopts a spiral structure and extends spirally along the flexible pipe. For example, the support 230 can be a spring made of metal. The inner diameter of the support 230 is greater than the inner diameter of the flexible pipe, and the outer diameter of the support 230 is less than the outer diameter of the flexible pipe, so that the flexible pipe wraps the support 230. Alternatively, the outer diameter of the support 230 is less than or equal to the inner diameter of the flexible pipe, and the flexible pipe is arranged on the outside of the support 230.

[0125] Of course, in some other embodiments, the support 230 can also adopt other structural forms and can support the flexible pipe. For example, the support 230 comprises a plurality of rod-shaped or long-strip-shaped plate structures. The extension direction of the support 230 is the same as the extension direction of the flexible pipe, and the plurality of supports 230 are arranged circumferentially around the center line of the flexible pipe.

[0126] See Figure 1 In some embodiments, the air blower further comprises a trigger 240 mounted on the handle 200. The trigger 240 is electrically connected to the control board 400, and the control board 400 is electrically connected to the driving motor 320. The trigger 240 is used to control the start and stop of the driving motor 320. For example, the trigger 240 is located on the side of the handle 200 facing the air outlet 111 and is located at the end of the handle 200 close to the main body 100. When a user holds the handle 200, the user can control the driving motor 320 to start by pressing the trigger 240 with a finger and control the driving motor 320 to stop by releasing the trigger 240 to reset the trigger 240.

[0127] In some embodiments, the air blower further comprises a lock 250 and an unlock button 260, the lock 250 is mounted on the handle 200, wherein the lock 250 is used to lock the trigger 240, and the unlock button 260 is mounted on the handle 200 and connected with the lock 250, the unlock button 260 is used to unlock the trigger 240.

[0128] The lock 250 and the unlock button 260 described above can be switches, which lock or unlock by opening or closing the circuit between the trigger 240 and the control panel 400, or can be mechanical structures such as a slide pin and a driving member for pulling out the slide pin, when the slide pin cooperates with the trigger 240, the position of the trigger 240 can be locked, and when the driving member drives the slide pin to separate from the trigger 240, the trigger 240 is unlocked. In the present embodiment, the structure of the lock 250 and the unlock button 260 is not limited, in other words, as long as the lock and unlock functions of the trigger 240 can be realized.

[0129] In some embodiments, in the extension direction of the handle 200, the control panel 400 is located on the side of the trigger 240 away from the main body 100, and the auxiliary air outlet 270 is located on the side of the control panel 400 away from the trigger 240. Thus, a certain gap can be formed between the auxiliary air outlet 270 and the trigger 240, so as to prevent the suction force generated by the position of the auxiliary air outlet 270 from affecting the fingers of the user for operating the trigger, and to improve the comfort and convenience of operation.

[0130] Preferably, the auxiliary air outlet 270 is located at the end of the handle 200 away from the main body 100, further reducing the influence of the auxiliary air outlet 270 on the fingers of the user.

[0131] In some embodiments, the orientation of the auxiliary air outlet 270 is opposite to the orientation of the air outlet 111, that is, the opening direction of the auxiliary air outlet 270 is opposite to the opening direction of the air outlet 111 in the front-rear direction. This reduces the influence of dust, water and other debris raised by the air outlet 111 when blowing air to the outside environment on the auxiliary air outlet 270, so that the air inlet of the auxiliary air outlet 270 is relatively clean, thereby reducing the possibility of pollution and damage to the control panel 400.

[0132] In some embodiments, the air blower further comprises at least one of a battery pack 500 and a wiring terminal (not shown in the figure). The battery pack 500 is detachably mounted on the handle 200, and in the state that the battery pack 500 is connected with the handle 200, the battery pack 500 is electrically connected with the control panel 400. For example, the battery pack 500 is detachably mounted at the end of the handle 200 away from the main body 100. The wiring terminal is mounted on the main body 100 or the handle 200, and the wiring terminal is electrically connected with the control panel 400, and the wiring terminal is used for external power supply. For example, the wiring terminal is mounted on the handle 200, and one end of the wiring terminal penetrates through the side wall of the handle 200 to be exposed outside the handle 200.

[0133] Preferably, the blower also has the aforementioned battery pack 500 and wiring terminals, so as to allow for flexible selection according to actual usage requirements.

[0134] Optionally, the blower includes a battery pack 500, with an air guide gap formed between the battery pack 500 and the handle 200, and at least one side of the air guide gap is open. An auxiliary air vent 270 is located within the air guide gap, i.e., the auxiliary air vent 270 is disposed on the peripheral wall of the air guide gap. The auxiliary air vent 270 connects to the external environment through the air guide gap, allowing air from the external environment to enter the auxiliary air vent 270. When the battery pack 500 is mounted on the handle 200, the battery pack 500 can shield the auxiliary air vent 270, preventing it from being exposed and reducing the possibility of dust, water, or other debris entering the auxiliary air vent 270.

[0135] Optionally, the battery pack 500 is provided with a port for connecting electrical equipment, including blowers, impact drills, etc. For example, when the battery pack 500 is connected to the handle 200, the port of the battery pack 500 is connected to the corresponding interface of the blower, thereby realizing electrical connection with the control board 400.

[0136] The blower in the above embodiment achieves cooling and protection functions for the control board 400 through the auxiliary fluid channel 210. As an alternative, such as Figure 9 As shown, the blower may also omit the auxiliary fluid channel 210. Specifically, the control board 400 is located within the main fluid duct 170, and the control board 400 is situated on the side of the impeller 310 facing away from the air outlet 111. That is, within the main fluid duct 170, the control board 400 and the impeller 310 are arranged sequentially along the airflow direction. In this configuration, the control board 400 is located on the side of the impeller 310 facing away from the air outlet 111. Dust and other debris entering through the air outlet 111 are unlikely to pass through the impeller 310 and reach the control board 400, thus providing protection for the control board 400. Furthermore, since the blower has a shielding and filtering structure at the air inlet 161, dust and other debris are also unlikely to reach the control board 400 through the air inlet 161. In addition, since the control board 400 is located within the main fluid duct 170, it can utilize the airflow within the main fluid duct 170 for time-dependent cooling. In this embodiment, along the airflow direction within the main fluid duct 170, the drive motor 320 and the control board 400 can both be located upstream of the impeller 310 to minimize airflow loss and ensure that the blower has a large airflow.

[0137] Combination Figure 10 and Figure 11In addition to the above structure, the air blower of the embodiments of the present application can also have other detachable accessories. For example, the air blower further comprises an air outlet assembly 700, which comprises at least one air outlet nozzle, and the air outlet nozzle is adapted to be detachably connected to the main body 100 and in communication with the air outlet 111.

[0138] In combination with Figure 12 and Figure 13 Optionally, the air outlet assembly 700 comprises a first air outlet nozzle 710, which is in a tubular structure, one end of which is adapted to be sleeved outside the air outlet 111 to guide the air discharged from the air outlet 111, and the other end can serve as an air outlet. Preferably, the first air outlet nozzle 710 is in a structure similar to a cone, with a gradually decreasing aperture from one end for interfacing with the air outlet 111 to the other end, thereby facilitating the realization of air gathering effect and increasing the flow rate of the air.

[0139] In some embodiments, the air outlet assembly 700 further comprises a second air outlet nozzle 720, which is rotatably arranged outside the first air outlet nozzle 710, and the second air outlet nozzle 720 is configured to rotate between a first angular position and a second angular position, in the first angular position, the second air outlet nozzle 720 is in communication with the first air outlet nozzle 710, and in the second angular position, the inner hole of the second air outlet nozzle 720 is blocked from the inner hole of the second air outlet nozzle 720.

[0140] Optionally, the second air outlet nozzle 720 is provided with two or more, and each of the two or more second air outlet nozzles 720 is rotatably connected to the first air outlet nozzle 710 and can be independently rotated. For example, the second air outlet nozzle 720 is provided with two, and the two second air outlet nozzles 720 are arranged on two opposite sides of the first air outlet nozzle 710, the rotation axes of the two second air outlet nozzles 720 are perpendicular to the axis of the first air outlet nozzle, and the rotation axes of the two second air outlet nozzles 720 are parallel to each other.

[0141] In some embodiments, the air outlet assembly 700 further comprises a blocking member 730, which is detachably connected to the first air outlet nozzle 710, and the blocking member 730 is adapted to switch between a state of blocking the outlet of the first air outlet nozzle 710 and a state of being separated from the outlet of the first air outlet nozzle 710. For example, the blocking member 730 comprises a soft rubber plug, which is connected to one end of the first air outlet nozzle 710 near the outlet through a flexible chain, and when the soft rubber plug is inserted into the outlet of the first air outlet nozzle 710, the outlet of the first air outlet nozzle 710 is blocked. By providing the blocking member 730, it is convenient to switch between different working conditions. For example Figure 12 As shown, when the first air outlet nozzle 710 outlet is not needed to blow air, the first air outlet nozzle 710 outlet is blocked by the soft rubber plug, at this time, air can be blown only through the second air outlet nozzle 720; as Figure 13As shown, when the first air outlet nozzle 710 is needed to blow air, the soft plug is pulled out, and at least part of the airflow can flow out through the first air outlet nozzle 710. At this time, the second air outlet nozzle 720 can blow air or not.

[0142] In combination Figure 14 In some embodiments, the air outlet assembly 700 further comprises a third air outlet nozzle 740, one end of the third air outlet nozzle 740 is adapted to be detachably connected with one end of the air outlet 111 of the main body 100, and the other end of the third air outlet nozzle 740 has two opposite outlets. When the third air outlet nozzle 740 is connected with the main body 100, the airflow of the air outlet can be sprayed in opposite directions through the two outlets of the third air outlet nozzle 740.

[0143] Optionally, the third air outlet nozzle 740 is configured to be adapted to be plugged with the first air outlet nozzle 710, so as to facilitate storage when the air outlet assembly 700 is not needed to be used, and when the second air outlet nozzle 720 is needed to blow air, the third air outlet nozzle 740 and the first air outlet nozzle 710 can be plugged, and the third air outlet nozzle 740 is connected with the main body 100 of the air blower, the outlet of the third air outlet nozzle 740 is opposite to the second air outlet nozzle 720 on the first air outlet nozzle 710, and the airflow of the air outlet 111 flows to the position of the second air outlet nozzle 720 through the third air outlet nozzle 740, so as to achieve better air outlet effect.

[0144] See again Figure 10 And Figure 11 In some embodiments, the air outlet assembly 700 further comprises a fourth air outlet nozzle 750, one end of the fourth air outlet nozzle 750 is adapted to be detachably connected with one end of the air outlet 111 of the main body 100, and the other end of the fourth air outlet nozzle 750 is in the shape of a fan and is provided with a plurality of fan-shaped arranged outlets. When the fourth air outlet nozzle 750 is installed at the position of the air outlet 111 of the main body 100, a fan-shaped airflow can be blown out through the plurality of fan-shaped arranged outlets, so as to expand the blowing angle and area.

[0145] In some embodiments, the air outlet assembly 700 further comprises an accessory rack 760, and the accessories such as the first air outlet nozzle 710, the third air outlet nozzle 740 and the fourth air outlet nozzle 750 are detachably connected with the accessory rack 760, and the accessory rack 760 is detachably connected with the main body 100 or the handle 200 of the air blower. For example, the accessory rack 760 has two installation positions, the first air outlet nozzle 710 and the third air outlet nozzle 740 are plugged and fitted and installed in one of the installation positions, and the fourth air outlet nozzle 750 is installed in the other installation position. By providing the accessory rack 760, the accessories can be conveniently stored, which is beneficial to reduce the storage space and prevent loss.

[0146] It is worth mentioning that the first air outlet nozzle 710, the third air outlet nozzle 740, the fourth air outlet nozzle 750, and the accessory rack 760 are detachably connected to the main body 100 or the handle 200 of the air blower in a plug-in or clamping manner, and the first air outlet nozzle 710, the third air outlet nozzle 740, and the fourth air outlet nozzle 750 are also detachably connected to the accessory rack 760 in a plug-in or clamping manner, which is not limited here. In addition, it is worth mentioning that the air outlet assembly 700 can also include other accessories such as flexible tubes, brushes, etc., which are not listed one by one here.

[0147] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.

[0148] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that for those skilled in the art, some modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A blower, characterized by, The utility model relates to a kind of air purifiers, including: Main body (100), the main body (100) is provided with air inlet (161), air outlet (111) and the main fluid duct (170) that communicates air inlet (161) and air outlet (111); Handle (200), with the main body (100) fixed connection, the extension direction of handle (200) and the extension direction of main body (100) cross, the handle (200) is provided with auxiliary air port (270) and auxiliary fluid passage (210), the orientation of auxiliary air port (270) is opposite with the orientation of air outlet (111), the auxiliary fluid passage (210) communicates auxiliary air port (270) and the main fluid duct (170); Air flow generating structure (300), installation is in main body (100), including impeller (310) and drive motor (320), the drive motor (320) is connected with the impeller (310), the impeller (310) and the drive motor (320) are located in the main fluid duct (170) inside; Control panel (400), installation is in the handle (200), and located in the auxiliary fluid passage (210) inside.

2. The air blower of claim 1, wherein The main body (100) includes: Air cylinder (110), the air cylinder (110) is sleeved on the outside of air flow generating structure (300), one end of the air cylinder (110) is configured as air outlet (111); Cylinder cover (120), with the one end of air cylinder (110) away from air outlet (111) is connected, the cylinder cover (120) has the perforation that communicates air inlet (161) and impeller (310); The main body (100) further includes: Air inlet cover (160), located on the side of cylinder cover (120) away from air cylinder (110), the air inlet cover (160) is configured with air inlet (161); The main body (100) further includes: Air inlet filter frame (190), located on the side of air inlet cover (160) close to air outlet (111); Air inlet filter cotton (191), installation is in air inlet filter frame (190); The main body (100) further includes relatively arranged first shell (1010) and second shell (1020), the first shell (1010) is fixedly connected with the second shell (1020) and is fixedly connected with handle (200), the first shell (1010) and the second shell (1020) are fixedly arranged on the outside of air cylinder (110), cylinder cover (120) and air inlet filter frame (190), one end of the first shell (1010) and the second shell (1020) is fixedly connected with air inlet cover (160); The main body (100) further includes: First sealing member (130), located between air cylinder (110) and cylinder cover (120); And / or, second sealing member (140), located between cylinder cover (120) and air flow generating structure (300); And / or, a damping member (150) is located between the air duct (110) and the airflow generating structure (300).

3. The air blower of claim 2, wherein The airflow generating structure (300) further comprises: A motor housing (330) is installed in the air duct (110) and covers the outside of the driving motor (320), and the impeller (310) is located at one end of the motor housing (330); The chamber between the motor housing (330) and the driving motor (320) constitutes a partial section of the main fluid air duct (170); The air duct (110) is provided with a tapered portion, the inner hole of the tapered portion is tapered from one end close to the air inlet (161) to one end away from the air inlet (161); the airflow generating structure (300) further comprises: An air outlet diffusion sleeve (340) is installed in the air duct (110), one end of the air outlet diffusion sleeve (340) communicates with one end of the motor housing (330) away from the impeller (310), and the other end of the air outlet diffusion sleeve (340) is provided with a flexible lip (341), and the flexible lip (341) abuts against the inner wall of the tapered portion; The inner cavity of the air outlet diffusion sleeve (340) constitutes a partial section of the main fluid air duct (170); The inner wall of the tapered portion is provided with at least one air guide rib (112), and the air guide rib (112) extends along the extension direction of the inner hole of the tapered portion; The radius of the air outlet (111) is smaller than the outer diameter of the impeller (310); The ratio of the radius of the air outlet (111) to the outer diameter of the impeller (310) is less than or equal to 1 / 2.

4. The air blower according to any one of claims 1 to 3, characterized in that, The handle (200) comprises a third shell (2010) and a fourth shell (2020), the third shell (2010) and the fourth shell (2020) are oppositely arranged and fixedly connected, the third shell (2010) and the fourth shell (2020) are fixedly connected with the main body (100), the auxiliary fluid channel (210) is located between the third shell (2010) and the fourth shell (2020), and the auxiliary air outlet (270) is located in the third shell (2010) and / or the fourth shell (2020). The main body (100) comprises a first shell (1010) and a second shell (1020), the first shell (1010) is fixedly connected with the third shell (2010), and the second shell (1020) is fixedly connected with the fourth shell (2020). The second shell (1020) and the third shell (2010) and / or the second shell (1020) and the fourth shell (2020) are integrally formed.

5. The air blower of claim 4, wherein The handle (200) further comprises: An installation cavity (211) is located between the third shell (2010) and the fourth shell (2020), and the installation cavity (211) is used for installing the control panel (400); The installation cavity (211) is provided with a first interface (2111) in communication with the main fluid air duct (170) and a second interface in communication with the auxiliary air outlet (270), and an inner cavity of the installation cavity (211) is configured as a partial section of the auxiliary fluid channel (210).

6. The air blower of claim 5, wherein The handle (200) further comprises: a pipe (221), a first end of the pipe (221) being in communication with the inner cavity of the installation cavity (211) through the second interface, a second end of the pipe (221) being in communication with the main fluid air duct (170), and an inner hole of the pipe (221) being configured as a partial section of the auxiliary fluid channel (210); the second end of the pipe (221) is provided with a first branch pipe (2211) in communication with the main fluid air duct (170), and a connection node of the first branch pipe (2211) and the main fluid air duct (170) is located on a side of the impeller (310) close to the air inlet (161); the main body (100) comprises a wind cylinder (110), and the airflow generating structure (300) comprises a motor housing (330), and an isolation cavity (180) is formed between the wind cylinder (110) and the motor housing (330); the second end of the pipe (221) is provided with a second branch pipe (2212) in communication with an inner cavity of the motor housing (330) through the isolation cavity (180); the pipe (221) comprises a flexible pipe; the pipe (221) further comprises a support (230) arranged in the flexible pipe; the support (230) adopts a spiral structure, and the support (230) extends spirally along the flexible pipe.

7. The air blower of any one of claims 1 to 3, wherein Further comprising: a trigger (240) mounted on the handle (200), the trigger (240) being electrically connected with the control board (400), and the control board (400) being electrically connected with the driving motor (320), the trigger (240) being used for controlling start and stop of the driving motor (320); Further comprising: a lock catch (250) mounted on the handle (200), the lock catch (250) being used for locking the trigger (240); and an unlocking button (260) mounted on the handle (200) and connected with the lock catch (250), the unlocking button (260) being used for unlocking the trigger (240); in an extension direction of the handle (200), the control board (400) is located on a side of the trigger (240) away from the main body (100), and the auxiliary air outlet (270) is located on a side of the control board (400) away from the trigger (240).

8. The air blower of any one of claims 1 to 3, wherein, Further comprising: a battery pack (500) detachably mounted on the handle (200), in a state where the battery pack (500) is connected with the handle (200), the battery pack (500) is electrically connected with the control board (400); And / or, a wiring terminal mounted on the main body (100) or the handle (200), the wiring terminal being electrically connected with the control panel (400), the wiring terminal being used for external connection of a power supply.

9. The air blower of claim 8, wherein, The air blower comprises a battery pack (500), a wind guide gap is formed between the battery pack (500) and the handle (200), the auxiliary air outlet (270) is located in the wind guide gap, and the auxiliary air outlet (270) is communicated with the external environment through the wind guide gap. The air blower comprises a battery pack (500), the battery pack (500) is provided with a port, and the port is used for connecting an electric device.

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