Vehicle-mounted handheld powerful fan

Abstract

The utility model belongs to the technical field of vehicle-mounted tools, and particularly relates to a vehicle-mounted handheld powerful fan which comprises a shell, a flow guide part, an air nozzle and a fan, an air duct is arranged on the shell and provided with a first air inlet and an air outlet which are communicated with the outside, the flow guide part and the air nozzle are arranged at the air outlet, and the air nozzle is arranged around the flow guide part. The flow guide part comprises a flow guide cover and an arc-shaped shell arranged at the rear end of the flow guide cover, the sectional area of the flow guide cover and the sectional area of the tuyere are gradually narrowed in the air outlet direction, and the fan is arranged in the air duct and used for driving external air to flow into the air duct from the first air inlet. According to the vehicle-mounted handheld powerful fan, by arranging the flow guide piece and the air nozzle, airflow is more concentrated, the flow speed of the airflow can be increased, the vehicle-mounted handheld powerful fan can output powerful airflow so as to clean dust, fallen leaves and other sundries on a vehicle body, the cleaning efficiency can be effectively improved, and the use experience of a user can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle tool technology, and in particular relates to a powerful handheld vehicle fan. Background Technology

[0002] A high-powered air purifier, also known as a powerful cleaning fan, is a highly efficient cleaning tool primarily used to remove dust, leaves, and other debris from vehicle bodies. Its powerful airflow quickly and effectively cleans the vehicle's surface, facilitating vehicle maintenance and making it very popular. However, existing high-powered air purifiers suffer from insufficiently concentrated airflow, affecting their usability. Utility Model Content

[0003] The purpose of this invention is to provide a powerful handheld vehicle fan that can solve the above-mentioned problems.

[0004] To achieve the above objectives, this utility model provides a vehicle-mounted handheld high-powered fan, comprising:

[0005] The housing has an air duct, which has a first air inlet and an air outlet that communicate with the outside.

[0006] Both the air guide and the nozzle are located at the air outlet and are coaxially arranged with the air duct. The nozzle is arranged around the air guide to form a gap that communicates with the air duct and is used to accelerate the airflow.

[0007] The air guide includes an air guide shroud and an arc-shaped shell disposed at the rear end of the air guide shroud. The cross-sectional areas of both the air guide shroud and the nozzle gradually narrow towards the air outlet direction.

[0008] A fan is installed inside the air duct to drive external air into the air duct from the first air inlet.

[0009] Optionally, the housing also includes a battery and a first circuit board. A cavity is provided inside the housing, which is located below the air duct. The first circuit board and the battery are disposed in the cavity. The battery and the fan are electrically connected to the first circuit board. The cavity is connected to the air duct through heat dissipation holes. A second air inlet communicating with the outside is provided inside the cavity.

[0010] Optionally, a second circuit board is also provided inside the cavity. The second circuit board is electrically connected to the battery and has a USB connector that penetrates the housing and communicates with the outside.

[0011] Optionally, the second circuit board is further provided with an emergency power connector, and the housing is provided with a socket corresponding to the emergency power connector.

[0012] Optionally, it also includes a cover plate, wherein the housing is provided with a groove corresponding to the emergency electrical connector, the socket is opened on the inner bottom wall of the groove, the cover plate is adapted to the groove, the inner bottom wall of the groove is also provided with a snap, the cover plate is provided with a buckle that engages with the snap, and the side of the cover plate facing outward is provided with an opening protrusion.

[0013] Optionally, the housing is provided with limiting grooves for hand gripping on two opposite surfaces corresponding to the air outlet direction.

[0014] Optionally, the inner bottom wall of the limiting groove is provided with anti-slip texture.

[0015] Optionally, the air duct is provided with a circular baffle near the first air inlet, and the periphery of the circular baffle is provided with a plurality of ribs spaced apart along its circumference, the ribs being connected to the inner wall of the air duct.

[0016] Optionally, the air guide further includes a connecting cylinder arranged around the arc-shaped shell, the connecting cylinder being adapted to the air duct, the arc-shaped shell being connected to the inner wall of the connecting cylinder through a connecting wall, and the rear end of the air nozzle being provided with an annular connecting portion, the annular connecting portion being engaged with the connecting cylinder.

[0017] Optionally, a limiting wall extending radially inward is provided at the air outlet, and the annular connecting portion abuts against the limiting wall;

[0018] The fan abuts against the end of the connecting cylinder away from the arc-shaped shell, and its output end extends into the connecting cylinder;

[0019] The housing includes a front housing and a rear housing. The rear housing is fitted onto the rear end of the front housing and abuts against the rear end of the fan. The first air inlet is located on the rear housing.

[0020] Compared with existing technologies, the beneficial effects of this utility model are as follows: The gap formed by the guide component and the nozzle, along with the design of the guide cover and nozzle having gradually narrower cross-sectional areas towards the air outlet, concentrates the airflow and increases its velocity. This allows the powerful fan to output a strong airflow to effectively clean dust, fallen leaves, and other debris from the vehicle body, significantly improving cleaning efficiency and enhancing the user experience. Furthermore, the arc-shaped shell guides the airflow from the fan, ensuring smoother flow along the outlet direction and reducing airflow turbulence and eddies. Attached Figure Description

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

[0022] Figure 1 This is a top view of the present invention.

[0023] Figure 2 For along Figure 1 Sectional view along line AA in the middle.

[0024] Figure 3 This is an exploded view of the present invention.

[0025] Figure 4 This is a perspective view of the present invention.

[0026] In the picture:

[0027] 100. Housing; 110. Front housing; 120. Rear housing; 130. Air duct; 131. First air inlet; 132. Air outlet; 133. Circular baffle; 134. Rib; 135. Limiting wall; 136. Opening; 140. Cavity; 141. Heat dissipation hole; 150. Second air inlet; 160. Groove; 161. Insert; 162. Bayonet; 170. Limiting groove; 171. Anti-slip texture;

[0028] 200. Flow guide; 210. Flow guide cover; 211. Gap; 220. Arc-shaped shell; 221. Connecting wall; 230. Connecting cylinder;

[0029] 300. Air nozzle; 310. Annular connecting part;

[0030] 400. Fan;

[0031] 500, storage battery;

[0032] 600. First circuit board; 610. Control button;

[0033] 700. Second circuit board; 710. USB electrical connector; 720. Emergency electrical connector;

[0034] 800, cover plate; 810, buckle; 820, opening protrusion. Detailed Implementation

[0035] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0036] In the description of the embodiments of this utility model, it should be understood that if the embodiments of this utility model involve directional indications, such as up, down, left, right, front, back, inside, outside, etc., the orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the embodiments of this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this embodiment of the invention, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part of a structure. They can be mechanical or electrical connections. They can be direct connections or indirect connections through an intermediate medium, and can represent the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.

[0039] like Figures 1 to 4 As shown, this utility model embodiment provides a vehicle-mounted handheld high-power fan, including a housing 100, a guide 200, a nozzle 300, a fan 400, a battery 500, a first circuit board 600, and a cover plate 800.

[0040] The housing 100 is provided with an air duct 130. Specifically, the air duct 130 is arranged along the width direction of the housing 100. The air duct 130 has a first air inlet 131 and an air outlet 132 that communicate with the outside. The fan 400 is arranged in the air duct 130 to drive the outside air to flow into the air duct 130 from the first air inlet 131.

[0041] Both the air guide 200 and the nozzle 300 are located at the air outlet 132 and are coaxially arranged with the air duct 130. The nozzle 300 is arranged around the air guide 200, forming a gap 211 that communicates with the air duct 130 and is used to accelerate the airflow. This gap 211 can increase the negative pressure of the airflow to achieve the purpose of accelerating the airflow. Specifically, the air guide 200 includes a guide shroud 210 and an arc-shaped shell 220 located at the rear end of the guide shroud 210. The cross-sectional area of ​​both the guide shroud 210 and the nozzle 300 gradually narrows towards the air outlet direction to guide the airflow, so that the airflow discharged from the gap 211 can be concentrated and powerful, so that the powerful fan can effectively clean dust, fallen leaves and other debris on the vehicle body, effectively improving cleaning efficiency and enhancing the user experience. The arc-shaped shell 220 can guide the airflow blown out by the fan 400, so that the airflow can flow more smoothly along the air outlet direction, reducing airflow turbulence and eddy current generation.

[0042] In one embodiment, a cavity 140 is also provided inside the housing 100. The cavity 140 is located below the air duct 130. The first circuit board 600 and the battery 500 are disposed inside the cavity 140. The battery 500 and the fan 400 are both electrically connected to the first circuit board 600. That is, the first circuit board 600 controls the battery 500 to supply power to the fan 400. It should be noted that the housing 100 is provided with a control button 610 connected to the first circuit board 600. The user controls the switch of the fan 400 through the control button 610 for easy operation.

[0043] The cavity 140 and the air duct 130 are connected through the heat dissipation hole 141. The cavity 140 is provided with a second air inlet 150 that communicates with the outside. Thus, the heat dissipation hole 141 and the second air inlet 150 form a good heat dissipation structure, which can effectively dissipate the heat generated by the battery 500 and the first circuit board 600 when they are working, and avoid the performance degradation or damage of the powerful fan due to overheating. This can improve the stability and service life of the powerful fan. Specifically, the second air inlet 150 is located on one side of the housing 100 and close to the lower end of the housing 100, so that the air entering the cavity 140 can effectively carry away the heat in the cavity 140.

[0044] In one embodiment, a second circuit board 700 is also provided inside the cavity 140. The second circuit board 700 is electrically connected to the battery 500 and is provided with a USB connector 710 that penetrates the housing 100 and communicates with the outside. Users can charge their electronic devices, such as mobile phone charging cables, by inserting them into the USB connector 710. The USB connector 710 eliminates the need for users to carry a power bank, saving storage space and making it easy for users to find.

[0045] In one embodiment, the second circuit board 700 is further provided with an emergency power connector 720, and the housing 100 is provided with a socket 161 corresponding to the emergency power connector 720. The emergency power connector 720 is used for emergency vehicle starting. Specifically, it can be used by inserting the plug of the battery clamp into the socket 161 to improve the convenience of use.

[0046] In one embodiment, the housing 100 has a groove 160 for powering the emergency power connector 720. A socket 161 is formed on the inner bottom wall of the groove 160. A cover plate 800 is fitted to the groove 160. A latch 162 is also provided on the inner bottom wall of the groove 160. A buckle 810 is provided on the cover plate 800 to engage with the latch 162. An opening protrusion 820 is provided on the cover plate 800 that is exposed relative to the housing 100. Specifically, the cover plate 800 is a rubber cover, which effectively protects the emergency power connector 720 and the socket 161 from dust and debris contamination and damage, extending their service life. Simultaneously, the opening protrusion 820 on the outward-facing side of the cover plate 800 allows users to quickly and easily open the cover plate 800 when the emergency power connector 720 is needed, making operation simple and convenient.

[0047] In one embodiment, the housing 100 is provided with a limiting groove 170 for hand gripping on two opposite surfaces corresponding to the air outlet direction. The inner bottom wall of the limiting groove 170 is provided with anti-slip texture 171 so that the user can hold the powerful fan more firmly.

[0048] In one embodiment, a circular baffle 133 is provided in the air duct 130 near the first air inlet 131. The periphery of the circular baffle 133 is provided with a plurality of ribs 134 spaced apart along its circumference. The ribs 134 are connected to the inner wall of the air duct 130. The circular baffle 133 can initially block and disperse the air entering the air duct 130, so that the airflow enters the air duct 130 more evenly.

[0049] In one embodiment, the guide 200 further includes a connecting cylinder 230 arranged around the arc-shaped shell 220. The connecting cylinder 230 is adapted to the air duct 130, which helps to better guide the airflow blown out by the fan 400 into the gap 211. The arc-shaped shell 220 is connected to the inner wall of the connecting cylinder 230 through the connecting wall 221. The rear end of the nozzle 300 is provided with an annular connecting part 310, which is engaged with the connecting cylinder 230 to improve the ease of assembly.

[0050] It should be noted that the heat dissipation hole 141 is opened on the side wall of the connecting cylinder 230, and the inner wall of the air duct 130 is provided with an opening 136 that communicates with the cavity 140. When the connecting cylinder 230 and the fan 400 are installed in the air duct, the opening 136 can be closed, and the heat dissipation hole 141 communicates with the opening 136.

[0051] In one embodiment, a limiting wall 135 extending radially inward is provided at the air outlet 132. The annular connecting portion 310 abuts against the limiting wall 135. The fan 400 abuts against the end of the connecting cylinder 230 away from the arc-shaped shell 220, and its output end extends into the connecting cylinder 230. The shell 100 includes a front shell 110 and a rear shell 120. The rear shell 120 is engaged at the rear end of the front shell 110 and abuts against the rear end of the fan 400. The first air inlet 131 is opened in the rear shell. On the 120, during assembly, after the nozzle 300 is clipped onto the guide 200, the assembled nozzle 300 and guide 200 are placed into the air duct 130 from the rear end of the front shell 110. The fan 400 is then placed into the air duct 130 and pushed until the annular connecting part 310 meets the limiting wall 135. Finally, the rear shell 120 is clipped onto the front shell 110 for limiting, and the assembly is complete. This improves assembly efficiency and facilitates subsequent disassembly, repair, and replacement.

[0052] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vehicle mounted hand held powerful fan characterized by, The utility model relates to a handheld strong power fan of vehicle carries, including: The shell is provided with air channel on it, and the air channel has first air inlet and air outlet that communicate with outside; The flow guide piece and the air nozzle are both set up at the air outlet, and are coaxial with the air channel, the air nozzle is set up around the flow guide piece, forms the gap that communicates with the air channel and is used for accelerating airflow; The flow guide piece includes the flow guide cover and the arc shell that sets up in the rear end of the flow guide cover, and the cross section area of the flow guide cover and the air nozzle gradually narrows towards the air outlet direction; The fan is set up in the air channel and is used for driving the outside air to flow into the air channel from the first air inlet.

2. A hand-held powerful fan for vehicle according to claim 1, wherein, Also including: The shell is further provided with the accommodating cavity, and the accommodating cavity is located below the air channel, the first circuit board and the battery are set up in the accommodating cavity, the battery and the fan are electrically connected with the first circuit board, the accommodating cavity communicates with the air channel through the heat dissipation hole, and the accommodating cavity is provided with the second air inlet that communicates with outside.

3. The handheld strong power fan of vehicle carries according to claim 2, wherein, The second circuit board is further set up in the accommodating cavity, the second circuit board is electrically connected with the battery, and the USB electric connector that communicates with outside is set up on the second circuit board and penetrates the shell.

4. The handheld strong power fan of vehicle carries according to claim 3, wherein, The second circuit board is further provided with the emergency electric connector, and the shell is provided with the socket corresponding to the emergency electric connector.

5. A hand-held powerful fan for vehicle use according to claim 4, wherein Also including: The shell is provided with the recess corresponding to the emergency electric connector, the socket is set up on the inner bottom wall of the recess, the cover plate is matched with the recess, the inner bottom wall of the recess is further provided with the bayonet, the cover plate is provided with the buckle that is clamped with the bayonet, and the side of the cover plate facing outside is provided with the opening convex.

6. The handheld strong power fan of vehicle carries according to claim 1, wherein, The two opposite surfaces of the shell corresponding to the air outlet direction are both provided with the limiting groove for palm gripping.

7. The handheld strong power fan of vehicle carries according to claim 6, wherein, The inner bottom wall of the limiting groove is provided with the anti-skid line.

8. The handheld strong power fan of vehicle carries according to claim 1, wherein, The air channel is provided with the circular baffle near the first air inlet, the circumference of the circular baffle is provided with a plurality of rib portions spaced along the circumferential direction, and the rib portions are connected with the inner wall of the air channel.

9. The handheld strong power fan of vehicle carries according to claim 1, wherein, The flow guide piece further includes the connecting barrel set around the arc shell, the connecting barrel is matched with the air channel, the arc shell is connected with the inner wall of the connecting barrel through the connecting wall, the rear end of the air nozzle is provided with the annular connecting portion, and the annular connecting portion is clamped with the connecting barrel.

10. The handheld strong power fan of vehicle carries according to claim 9, wherein, The air outlet is provided with the limiting wall extending radially inwardly, the annular connecting portion abuts against the limiting wall; The fan abuts against one end of the connecting barrel away from the arc shell, and the output end of the fan extends into the connecting barrel. The shell comprises a front shell and a rear shell, the rear shell is clamped at the rear end of the front shell and abuts against the rear end of the fan, and the first air inlet is arranged on the rear shell.

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