Portable miniature air pump

Abstract

The embodiment of the utility model discloses a portable miniature air pump which comprises a shell, a centrifugal fan unit, a vortex air compressor unit, a motor and an airflow channel are arranged in the shell, an air inlet and an air outlet are formed in the shell, and the centrifugal fan unit comprises a centrifugal air cavity and a centrifugal impeller arranged in the centrifugal air cavity. The vortex air compressor unit comprises a vortex cavity and a vortex disc arranged in the vortex cavity, the motor drives the centrifugal impeller and the vortex disc, the air inlet is correspondingly communicated with the centrifugal air cavity, the air outlet is correspondingly communicated with the vortex cavity, and the airflow channel is communicated with the centrifugal air cavity and the vortex cavity. According to the utility model, the wind pressure output can be obviously improved, and the requirement of micro equipment on high-pressure gas is met. The utility model has a compact structure and is convenient to install and use in a limited space. The device is low in energy consumption, high in efficiency and stable and reliable in operation. The noise control is good, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid machinery, in particular to a portable micro air pump. Background Art

[0002] With the popularity of outdoor activities and adventure activities, the demand for portable devices that need to work without an external power supply or compressed air supply is increasing. Although traditional axial flow fans or centrifugal fans can provide a large air volume, due to their structural characteristics, the air pressure is often low, and the energy loss is large during the transportation process, making it difficult to meet the high-efficiency air supply requirements in specific scenarios. In addition, existing gas transportation devices generally have problems of complex structure, large volume, and heavy weight, which greatly limit their application in outdoor environments.

[0003] The technical problem to be solved by the embodiments of the utility model is to provide a portable micro air pump to achieve more efficient and more compact gas transportation.

[0004] To solve the above technical problem, the embodiments of the utility model propose a portable micro air pump, which includes a housing. Inside the housing, there are a centrifugal fan unit, a scroll air compressor unit, a motor, and an air flow channel. An air inlet and an air outlet are provided on the housing. The centrifugal fan unit includes a centrifugal air chamber and a centrifugal impeller arranged in the centrifugal air chamber. The scroll air compressor unit includes a scroll chamber and a scroll disk arranged in the scroll chamber. The motor drives the centrifugal impeller and the scroll disk. The air inlet is correspondingly connected to the centrifugal air chamber, the air outlet is correspondingly connected to the scroll chamber, and the air flow channel connects the centrifugal air chamber and the scroll chamber.

[0005] Further, the air inlet is provided at one end of the housing, and the air inlet is annular.

[0006] Further, the air outlet is provided at the other end of the housing, and the motor is arranged between the centrifugal fan unit and the scroll air compressor unit.

[0007] Further, a control board and a battery are provided inside the housing, and the control board is electrically connected to the motor and the battery.

[0008] Further, a control switch is provided on the housing, and the control switch is electrically connected to the control board.

[0009] Further, an LED lamp is provided inside the housing, and the LED lamp is electrically connected to the control board.

[0010] Further, a USB port is provided on the housing, and the USB port is electrically connected to the control board.

[0011] The beneficial effects of the present utility model are as follows: The present utility model integrates a centrifugal fan and a scroll air compressor, and utilizes the advantages of the centrifugal fan and the scroll air compressor respectively to achieve more efficient and more compact gas transportation. The design of the present utility model utilizes the principle of fluid dynamics. By optimizing the structures of the fan and the compressor, the goal of providing a large wind pressure within a small volume is achieved. The present utility model is not only applicable to personal camping and outdoor activities, but can also be extended to other occasions requiring portable gas transportation, such as pneumatic tools for small machinery, pneumatic components of medical equipment, and other equipment requiring portable gas sources. The present utility model enables users to enjoy a more portable and easy-to-carry gas transportation solution without sacrificing performance, thereby broadening the application scope of fluid machinery technology in the field of portable applications. Description of the Drawings

[0012] Figure 1 Fig. is a three-dimensional structural view of a portable micro air pump according to an embodiment of the present utility model from one angle.

[0013] Figure 2 Fig. is a three-dimensional structural view of a portable micro air pump according to an embodiment of the present utility model from another angle.

[0014] Figure 3 Fig. is a top view of a portable micro air pump according to an embodiment of the present utility model.

[0015] Figure 4 is Figure 3 a cross-sectional view taken along line A-A in Fig.

[0016] Figure 5 Fig. is an exploded view of a portable micro air pump according to an embodiment of the present utility model.

[0017] Explanation of the Reference Numerals in the Drawings

[0018] Housing 1, motor 2, air flow channel 3, centrifugal air cavity 4, centrifugal impeller 5, scroll cavity 6, scroll disk 7, air inlet 8, air outlet 9, control board 10, control switch 11, USB port 12. Detailed Embodiment

[0019] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0020] In the embodiments of the present utility model, if there are directional indications (such as up, down, left, right, front, back...), they are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0021] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0022] Please refer to Figures 1 to 5 , the portable micro air pump of the embodiment of the present utility model includes a housing.

[0023] Inside the housing, there are provided a centrifugal fan unit, a scroll air compressor unit, a motor, and an air flow channel. The housing is provided with an air inlet and an air outlet. The centrifugal fan unit includes a centrifugal air chamber and a centrifugal impeller disposed in the centrifugal air chamber. The scroll air compressor unit includes a scroll chamber and a scroll disk disposed in the scroll chamber. The motor drives the centrifugal impeller and the scroll disk. The housing, the centrifugal air chamber, and the scroll chamber can be made of ABS material.

[0024] In specific implementation, the number of motors can also be set to 2, which respectively control the centrifugal fan unit and the scroll air compressor unit; preferably, the number of motors is 1. After testing, the noise during the operation of the present utility model is ≤30dB, and the air supply pressure is greater than 3.5Kpa.

[0025] The air inlet is correspondingly communicated with the centrifugal air chamber, and the air outlet is correspondingly communicated with the scroll chamber. The air flow channel communicates the centrifugal air chamber and the scroll chamber to ensure smooth air flow without obstruction and reduce energy loss.

[0026] The centrifugal fan unit is responsible for sucking air from the air inlet and initially accelerating the air to form an air flow with a certain flow rate; the scroll air compressor unit receives this air flow and realizes the efficient compression of the air through the relative movement of the scroll disk, and finally outputs high-pressure gas through the air outlet.

[0027] As an implementation manner, the air inlet is disposed at one end of the housing, and the air inlet is annular. The annular design is more beautiful and is more conducive to air intake.

[0028] As an implementation manner, the air outlet is disposed at the other end of the housing, and the motor is disposed between the centrifugal fan unit and the scroll air compressor unit.

[0029] As an implementation manner, a control board and a battery are provided inside the housing. The control board is electrically connected to the motor and the battery. The battery supplies power to the control board and the motor. The control board adjusts the working states of the centrifugal fan unit and the scroll air compressor unit according to actual needs to achieve precise control of the air pressure output.

[0030] As an implementation manner, a control switch is provided on the housing, and the control switch is electrically connected to the control board. The control switch facilitates user operation to turn on or off the portable micro air pump.

[0031] As an implementation manner, an LED lamp is provided inside the housing, and the LED lamp is electrically connected to the control board. The LED lamp is used to realize the lighting and flashing functions, providing additional convenience for night or emergency situations.

[0032] As an implementation manner, a USB port is provided on the housing, and the USB port is electrically connected to the control board. The USB port facilitates the user to charge the battery or directly supply power from an external power source to the motor to drive the fan and the scroll disk.

[0033] The utility model can significantly improve the wind pressure output. The combination of the air duct design and the appearance design ensures the beautiful appearance under the requirements of wind pressure and air volume, meeting the demand for high-pressure gas of micro devices. The structure of the utility model is compact, facilitating installation and use in a limited space. The utility model has low energy consumption, high efficiency, and stable and reliable operation. The noise of the utility model is well controlled, improving the user experience.

[0034] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalent scope.

Claims

1. A portable micro air pump, characterized in that: It includes a shell, in which a centrifugal fan unit, a vortex air compressor unit, a motor, and an air flow channel are arranged. The shell is provided with an air inlet and an air outlet. The centrifugal fan unit includes a centrifugal air chamber and a centrifugal impeller arranged in the centrifugal air chamber. The vortex air compressor unit includes a vortex chamber and a vortex disk arranged in the vortex chamber. The motor drives the centrifugal impeller and the vortex disk. The air inlet corresponds to the centrifugal air chamber, the air outlet corresponds to the vortex chamber, and the air flow channel connects the centrifugal air chamber and the vortex chamber.

2. The portable micro air pump according to claim 1, characterized in that: The air inlet is arranged at one end of the shell body and is annular.

3. The portable micro air pump according to claim 2, characterized in that: The air outlet is arranged at the other end of the shell, and the motor is arranged between the centrifugal fan unit and the vortex air compressor unit.

4. The portable micro air pump according to claim 1, characterized in that: A control board and a battery are arranged in the shell, and the control board is electrically connected to the motor and the battery.

5. The portable micro air pump according to claim 4, characterized in that: The shell body is provided with a control switch, and the control switch is electrically connected to the control board.

6. The portable micro air pump according to claim 4, characterized in that: An LED lamp is arranged in the shell, and the LED lamp is electrically connected to the control board.

7. The portable micro air pump according to claim 4, characterized in that: The shell is provided with a USB port, which is electrically connected to the control board.

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