A detachable air extraction device

Abstract

This application discloses a detachable air extraction device, comprising: an upper shell, an air extraction fan and a control board disposed inside the upper shell, the air extraction fan being electrically connected to the control board, the upper shell having a plurality of air outlets, and a lower shell being detachably connected to the bottom of the upper shell, with an external connector located between the upper shell and the lower shell; the lower shell having an air inlet, and an air duct disposed on the side of the upper shell, with the air outlets communicating with the air duct; by adopting the above method, the upper and lower shells are detachably connected together, allowing the air extraction device to be disassembled as needed, and the air extraction device can also be installed on other travel bags, improving practicality, and it can perform suction without connecting to external air extraction equipment, making it simpler and more convenient to use; at the same time, the miniaturized air extraction device can be powered by mobile devices, etc., making it more adaptable, providing a better user experience, and has a simple structure, reasonable design, and low cost.

Description

Technical Field

[0001] This utility model relates to the field of air extraction device technology, and in particular to a detachable air extraction device. Background Technology

[0002] A travel bag is a bag used to store clothes and other items when traveling. Traditional travel bags only have a storage function; they expand under the weight of clothing, taking up a lot of space. To solve this problem, a vacuum-sealed travel bag was designed. This involves sealing the bag and installing a sealing valve. After clothing is placed inside, an external vacuum device connected to the valve removes air, compressing the bag and reducing its volume. However, in actual use, the inventors found that the vacuum device and the travel bag are separate components, making it easy to forget or misplace the vacuum device, causing inconvenience.

[0003] Therefore, there is an urgent need to design a detachable air extraction device to solve one or more technical problems that are deficient in the existing technology. Utility Model Content

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a detachable air extraction device, characterized in that it includes: an upper shell, in which an air extraction fan and a control board are provided, the air extraction fan is electrically connected to the control board, the upper shell has a plurality of air outlets, and a lower shell is detachably connected to the bottom of the upper shell; the lower shell has an air inlet, the upper shell has an air duct inside, the air outlet is connected to the air duct, the air extraction fan draws in air through the air inlet and sends the air into the air duct, and sends it out through the air outlet.

[0005] In a preferred embodiment, the top of the upper shell is provided with a recessed independent chamber, the outer side wall of the independent chamber is spaced apart from the side wall of the upper shell to form the air duct, the control board is placed in the independent chamber, the control board is provided with a switch button and a power connector, the top of the independent chamber is provided with a chamber cover, and the chamber cover has a through hole at the position corresponding to the power interface.

[0006] In a preferred embodiment, the exhaust fan includes: a motor connected to the independent chamber, a centrifugal impeller connected to the output end of the motor, the air inlet end of the centrifugal impeller facing the air inlet hole, and the air outlet end of the centrifugal impeller corresponding to the air duct.

[0007] In a preferred embodiment, the end of the air duct adjacent to the centrifugal impeller is set with a predetermined arc.

[0008] In a preferred embodiment, the central protrusion of the independent chamber forms a accommodating mounting chamber, the motor is located inside the mounting chamber, the centrifugal impeller is located outside the mounting chamber, and the control panel surrounds the outside of the mounting chamber.

[0009] In a preferred embodiment, a sealing cap is also attached to the outer side of the housing.

[0010] In a preferred embodiment, the upper shell is provided with a plurality of connecting posts, and the lower shell is provided with a protruding positioning groove at a position corresponding to the connecting posts, the positioning groove being adapted to the connecting posts.

[0011] In a preferred embodiment, a connector for sealing connection with an external carrier is provided between the upper shell and the lower shell.

[0012] The beneficial effects of this utility model are: by detachably connecting the upper and lower shells together, the vacuum device can be disassembled as needed, and the vacuum device can also be installed on other travel bags, improving practicality. Moreover, it can perform vacuuming without connecting to external vacuuming equipment, making it simpler and more convenient to use. At the same time, the miniaturized vacuum device can be powered by mobile devices, making it more adaptable and providing a better user experience. It also has a simple structure, reasonable design, and low cost. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is an exploded view of the present invention;

[0015] Figure 3 This is a cross-sectional view of the present invention.

[0016] In the picture:

[0017] 10. Upper shell; 11. Air outlet; 12. Air duct; 13. Exhaust fan; 131. Motor; 132. Centrifugal impeller; 14. Control panel; 141. Switch button; 142. Power connector; 15. Independent chamber; 16. Installation chamber; 17. Chamber cover; 18. Through hole; 19. Sealing cover; 20. Lower shell; 21. Air inlet; 22. Positioning groove; 23. Connecting column. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0019] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are 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, they should not be construed as limitations on the embodiments of this utility model.

[0020] In this embodiment of the invention, 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. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0021] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0022] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] like Figures 1-3 As shown, this utility model provides a detachable air extraction device (hereinafter referred to as the air extraction device), including: an upper shell 10, in which an air extraction fan 13 and a control board 14 are provided, the air extraction fan 13 and the control board 14 are electrically connected, the upper shell 10 has a plurality of air outlets 11, and a lower shell 20 is detachably connected to the bottom of the upper shell 10, with an external connector located between the upper shell 10 and the lower shell 20; the lower shell 20 has an air inlet 21, and the upper shell 10 has an air duct 12 inside, the air outlets 11 are connected to the air duct 12, the air extraction fan 13 draws in air through the air inlet 21 and sends the air into the air duct 12, and sends it out through the air outlets 11;

[0024] Specifically, the upper shell 10 and the lower shell 20 are detachably connected and fixed by fasteners such as screws. A connector (not shown in the figure) that is heat-sealed to the outer travel bag is located between the upper shell 10 and the lower shell 20. The upper and lower shells 20 clamp the connector, and the air extraction device is sealed to the travel bag by the compression of the upper shell 10 and the lower shell 20 relative to the connector. The connector improves the sealing effect. The detachable connection allows the air extraction device to be easily removed from the travel bag for cleaning, and the detachable connection method also allows for secure installation of the air extraction device. It is more practical to pack into other travel bags; an exhaust fan 13 and a control board 14 are provided in the middle of the upper shell 10. The control board 14 controls the operation of the exhaust fan 13. An air inlet 21 is provided in the middle of the lower shell 20. The air inlet end of the exhaust fan 13 is arranged opposite to the air inlet 21. Several air outlets 11 are provided on the top of the upper shell 10. In this embodiment, the air outlets 11 are preferably located on the top side of the upper shell 10 and are arranged in a circumferential direction. An air duct 12 for air flow is also provided in the side of the upper shell 10. The air duct 12 and the air outlets are connected to the air ducts. Hole 11 is connected, and the end of the air duct 12 away from the air outlet 11 corresponds to the air outlet end of the exhaust fan 13. When the exhaust fan 13 is running, air is drawn in through the air inlet 21 and input into the air duct 12 through the air outlet end. The air flows along the air duct 12 and is finally discharged through the air outlet 11. In the actual installation process, the upper shell 10 is located outside the travel bag, and the lower shell 20 is located inside the travel bag. The upper shell 10 and the lower shell 20 are sealed to the connector on the travel bag by compression. When the exhaust fan 13 is running, the travel bag is extracted. The air inside the travel bag is expelled, causing the internal air pressure to be lower than the external air pressure, thus reducing the overall volume of the travel bag after items are placed inside. To prevent air backflow after the air extraction device stops operating, the air outlet 11 of the upper shell 10 can be covered by a sealing cap 19 or a one-way valve can be installed in the air extraction device to restrict air backflow. In this application, the sealing cap 19 is preferred, which can effectively reduce production costs. Moreover, the sealing cap 19 is connected to the upper shell 10 to prevent the sealing cap 19 from falling off or being lost.

[0025] Furthermore, the top of the upper shell 10 is provided with a recessed independent chamber 15, and the outer side wall of the independent chamber 15 is spaced apart from the side wall of the upper shell 10 to form the air duct 12. The control board 14 is placed in the independent chamber 15, and the control board 14 is provided with a switch button 141 and a power connector 142. The top of the independent chamber 15 is provided with a cavity cover 17, and the cavity cover 17 has a through hole 18 at the position corresponding to the power interface.

[0026] Specifically, since the exhaust fan 13 generates heat during operation, a recessed independent chamber 15 is provided on the top of the upper shell 10 to prevent the heat from affecting the normal operation of the control board 14. The control board 14 is placed inside the independent chamber 15, and the exhaust fan 13 is located outside the independent chamber 15, thereby blocking the heat transfer through the independent chamber 15. The control board 14 is provided with a switch button 141 and a power connector 142. The switch button 141 is used to control the start and stop of the exhaust fan 13, and the power connector 142 is used to connect to an external power source. The power connector 142 preferably adopts a Type-C interface with the PD (Power Delivery) protocol, so that devices such as mobile phones and power banks can also be powered, not limited to mains power, and with greater applicability. To prevent the control board 14 from being exposed, a cavity cover 17 is also embedded on the top of the independent chamber 15. The cavity cover 17 has a through hole 18 at the position corresponding to the power connector 142, and a pressing area is provided at the position corresponding to the switch button 141 on the cavity cover 17.

[0027] Furthermore, the exhaust fan 13 includes: a motor 131, the motor 131 is connected to the independent chamber 15, the output end of the motor 131 is connected to a centrifugal impeller 132, the air inlet end of the centrifugal impeller 132 is opposite to the air inlet 21, and the air outlet end of the centrifugal impeller 132 is corresponding to the air duct 12;

[0028] Specifically, the exhaust fan 13 includes: a motor 131, the tail end of which is detachably fixed to the independent chamber 15 by fasteners; a centrifugal impeller 132 is connected to the output end of the motor 131; the centrifugal impeller 132 has higher air pressure and faster exhaust speed, and can reduce the overall length and volume of the exhaust device by means of axial air intake and radial air exhaust; the air intake end of the centrifugal impeller 132 is opposite to the air intake hole 21 of the lower shell 20, and the air exhaust end is corresponding to the air duct 12; air is drawn in from the air intake hole 21 and discharged into the air duct 12 through the air exhaust end.

[0029] Furthermore, the end of the air duct 12 adjacent to the centrifugal impeller 132 is set with a predetermined arc.

[0030] Specifically, to prevent disorderly diffusion of air when it is blown onto the lower casing 20 by the centrifugal impeller 132, which would hinder exhaust and affect the extraction efficiency, the end of the air duct 12 adjacent to the centrifugal impeller 132 is set in an arc shape with a predetermined curvature. Through the arc-shaped guiding effect, when the air blown onto the arc-shaped position of the air duct 12 by the centrifugal impeller 132, the air flows along a predetermined path through the arc-shaped guiding effect, thus avoiding disorderly diffusion.

[0031] Furthermore, the central protrusion of the independent chamber 15 forms an accommodating mounting chamber 16, the motor 131 is located inside the mounting chamber 16, the centrifugal impeller 132 is located outside the mounting chamber, and the control board 14 surrounds the outside of the mounting chamber 16.

[0032] Specifically, to further reduce the overall volume of the air extraction device, the central part of the independent chamber 15 protrudes to form an installation chamber 16 with a receiving cavity. The motor 131 is located inside the installation chamber 16 and is connected to the installation chamber 16 by fasteners. The centrifugal impeller 132 is located below the installation chamber 16. By setting the installation chamber 16, space is utilized more rationally and the thickness of the air extraction device is reduced. The control plate 14 surrounds the outside of the installation chamber 16.

[0033] Furthermore, the upper shell 10 is provided with a plurality of connecting posts 23, and the lower shell 20 is provided with a protruding positioning groove 22 at the position corresponding to the connecting posts 23, the positioning groove 22 being adapted to the connecting posts 23;

[0034] Specifically, since the upper shell 10 and the lower shell 20 are detachably connected together, in order to improve the convenience of assembly, the upper shell 10 is provided with multiple connecting posts 23, and the lower shell 20 is provided with protruding positioning grooves 22 at the corresponding positions of the connecting posts 23. The positioning grooves 22 are adapted to the connecting posts 23. When connection is required, the connecting posts 23 can be inserted into the positioning grooves 22 to limit the relative position between the upper shell 10 and the lower shell 20 and avoid movement, thereby improving the convenience of assembly.

[0035] In summary, the detachable connection between the upper and lower shells allows the vacuum device to be disassembled as needed and installed on other travel bags, enhancing practicality. It can perform vacuuming without connecting to external vacuum devices, making it simpler and more convenient to use. Furthermore, the miniaturized vacuum device can be powered by mobile devices, making it more adaptable and providing a better user experience. It also features a simple structure, reasonable design, and low cost.

[0036] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A detachable air extraction device, characterized in that, include: The upper shell contains an exhaust fan and a control board. The exhaust fan is electrically connected to the control board. The upper shell has several air outlets. The bottom of the upper shell is detachably connected to a lower shell. The lower shell has an air inlet. The upper shell has an air duct inside. The air outlets are connected to the air duct. The exhaust fan draws in air through the air inlet and sends the air into the air duct, and then sends it out through the air outlets.

2. The detachable air extraction device according to claim 1, characterized in that, The top of the upper shell has a recessed independent chamber. The outer wall of the independent chamber and the side wall of the upper shell are spaced apart to form the air duct. The control board is placed in the independent chamber. The control board has a switch button and a power connector. The top of the independent chamber has a cover. The cover and the power connector have through holes at corresponding positions.

3. The detachable air extraction device according to claim 2, characterized in that, The exhaust fan includes a motor connected to the independent chamber, a centrifugal impeller connected to the output end of the motor, an air inlet of the centrifugal impeller opposite to the air inlet hole, and an air outlet of the centrifugal impeller corresponding to the air duct.

4. The detachable air extraction device according to claim 3, characterized in that, The end of the air duct adjacent to the centrifugal impeller is set with a predetermined arc.

5. The detachable air extraction device according to claim 3, characterized in that, The central protrusion of the independent chamber forms a mounting chamber that can accommodate the motor, which is located inside the mounting chamber. The centrifugal impeller is located outside the mounting chamber, and the control board surrounds the outside of the mounting chamber.

6. The detachable air extraction device according to claim 1, characterized in that, A sealing cap is also connected to the outside of the upper shell.

7. The detachable air extraction device according to claim 1, characterized in that, The upper shell is provided with multiple connecting posts, and the lower shell is provided with protruding positioning grooves at positions corresponding to the connecting posts, the positioning grooves being adapted to the connecting posts.

8. The detachable air extraction device according to claim 1, characterized in that, A connector for sealing connection with an external carrier is provided between the upper shell and the lower shell.

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