Low-noise electromagnetic air pump

Abstract

The low-noise electromagnetic air pump comprises a pump body, a magnet, magnetic bowls, a vibration assembly, a pump body and a top cover, the magnet is fixedly arranged at the bottom of the pump body, and the magnetic bowls are arranged between the magnet and the bottom of the pump body and between the magnet and the side face of the pump body; the vibration assembly comprises a coil, an annular framework and a vibrating diaphragm, the coil is wound in an annular groove of the annular framework to form a movable coil, the vibrating diaphragm is arranged at the top end of the pump body in a sealed mode, and the vibrating diaphragm and the movable coil form a vibration whole through sealing glue. The pump body is arranged at the top end of the pump body, the pump body is provided with an air inlet and an air outlet, the air inlet and the air outlet are provided with check valves, and the top cover is arranged on the pump body. According to the low-noise electromagnetic air pump, the vibrating diaphragm is driven in an electromagnetic mode to generate airflow instead of being driven by a motor, the low-noise electromagnetic air pump is low in noise, the comfort degree is improved, the structure is simple and reliable, the size can be smaller due to the adoption of the electromagnetic driving mode, and space arrangement is facilitated.

Description

Technical Field

[0001] The utility model mainly relates to a method for realizing a low-noise electromagnetic air pump. Background Art

[0002] At present, the air source of the pneumatic products in the automotive seat comfort system comes from an air pump, and the functions of the products are realized through the air source provided by the air pump. In the existing technology, the motor is energized to operate, driving the eccentric wheel to rotate → the eccentric wheel drives the leather bowl bracket to move up and down in an arc through a steel needle → the leather bowl bracket pushes the leather bowl to make a reciprocating motion → the leather bowl is stretched downward, the volume of the leather bowl airbag increases, generating a vacuum chamber, the outlet valve piece closes, the inlet valve piece opens, and the gas enters the air passage from the inlet port and enters the airbag through the inlet valve piece → the leather bowl is compressed upward, the volume of the leather bowl airbag decreases, generating positive pressure, the inlet valve piece closes, the outlet valve piece opens, and the airbag squeezes the gas through the valve piece and discharges it from the outlet hole → the motor runs continuously, the air flow is continuously inhaled and discharged, and a stable flow is formed for the bracket to move up and down in an arc → the leather bowl bracket pushes the leather bowl to make a reciprocating motion → the leather bowl is stretched downward, the volume of the leather bowl airbag increases, generating a vacuum chamber, the outlet valve piece closes, the inlet valve piece opens, and the gas enters the air passage from the inlet port and enters the airbag through the inlet valve piece → the leather bowl is compressed upward, the volume of the leather bowl airbag decreases, generating positive pressure, the inlet valve piece closes, the outlet valve piece opens, and the airbag squeezes the gas through the valve piece and discharges it from the outlet hole → the motor runs continuously, the air flow is continuously inhaled and discharged, and a stable flow is formed. In the existing technology, the motor drive is adopted, with high noise and large size, which is not conducive to miniaturized design. Summary of the Invention

[0003] Object of the Invention: Aiming at the above existing problems and deficiencies, the object of the utility model is to provide a low-noise electromagnetic air pump.

[0004] Technical Solution: To achieve the above object of the invention, the utility model adopts the following technical solution: A low-noise electromagnetic air pump, comprising a pump body, a magnet, a magnetic bowl, a vibration assembly, a pump body and a top cover,

[0005] The magnet is fixedly arranged at the bottom of the pump body, and a magnetic bowl is arranged between the magnet and the bottom and side surfaces of the pump body; the vibration assembly includes a coil, an annular skeleton and a diaphragm. The coil is wound in the annular groove of the annular plastic skeleton to form a movable coil. The diaphragm is hermetically arranged at the top end of the pump body, and the diaphragm and the movable coil form a vibration integral through sealing glue; the pump body is arranged at the top end of the pump body. The pump body is provided with an air inlet and an air outlet, and check valves are arranged at the air inlet and the air outlet. The top cover is arranged on the pump body.

[0006] Preferably, the top cover is respectively provided with an air inlet cavity communicating with the air inlet of the pump body and an air outlet end communicating with the air outlet; the air inlet cavity is provided with a plurality of air inlet holes, and the air inlet cavity is filled with sponge.

[0007] Preferably, the diaphragm is made of silica gel, and the magnetic bowl is made of silicon steel or ferrite.

[0008] Preferably, a spring washer is further provided on the top of the magnet.

[0009] Preferably, the annular skeleton is made of plastic and includes a skeleton bottom and an annular barrel wall, and the annular barrel wall is provided with an annular groove for winding the coil.

[0010] Beneficial effects: Compared with the prior art, the low-noise electromagnetic air pump of the present utility model uses electromagnetic drive to generate air flow instead of motor drive, has low noise and improves comfort, and has a simple and reliable structure. Since the electromagnetic drive method is adopted, the size can be smaller, which is convenient for space layout. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the low-noise electromagnetic air pump of the present utility model.

[0012] Figure 2 It is a schematic cross-sectional structural diagram of the low-noise electromagnetic air pump of the present utility model.

[0013] Figure 3 It is a schematic working principle diagram of the low-noise electromagnetic air pump of the present utility model.

[0014] Among them, pump body 1, magnet 2, magnetic bowl 3, vibration assembly 3, pump body 4, top cover 5, coil 6, annular skeleton 7, diaphragm 8, check valve 9, air inlet 10, air outlet 11, air inlet cavity 12, sponge 13, spring washer 14, air inlet hole 15. Detailed Embodiments

[0015] The present utility model will be further clarified below in conjunction with the drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. After reading the present utility model, various equivalent modifications made by those skilled in the art to the present utility model all fall within the scope defined by the appended claims of this application.

[0016] As Figure 1 and 2 shown, the electromagnetic air pump of the present invention mainly includes a pump body, a top cover, a diaphragm, a check valve, a moving coil, a washer (spring washer), a magnet, a magnetic bowl and a top cover, etc.

[0017] The magnet is fixedly arranged at the bottom of the pump body, and a magnetic bowl is arranged between the magnet and the bottom and side surfaces of the pump body; the vibration assembly includes a coil, an annular skeleton and a diaphragm. The coil is wound in the annular groove of the annular plastic skeleton to form a movable coil. The diaphragm is hermetically arranged at the top end of the pump body, and the diaphragm and the movable coil are formed into a vibration whole through potting; the pump body is arranged at the top end of the pump body, the pump body is provided with an air inlet and an air outlet, check valves are arranged at the air inlet and the air outlet, and the top cover is arranged on the pump body.

[0018] As a preferred solution, the top cover is respectively provided with an air inlet cavity communicated with the air inlet of the pump body and an air outlet end communicated with the air outlet; the air inlet cavity is provided with a plurality of air inlet holes, and the air inlet cavity is filled with sponge.

[0019] As Figure 3 shown, when the movable coil is energized with a positive voltage, the diaphragm is driven to stretch downward, the volume of the upper cavity increases, a vacuum cavity is generated, the air outlet valve piece is closed, and the air inlet valve piece is opened. Gas enters the upper air cavity from the air inlet. When the movable coil is energized with a reverse voltage, the diaphragm is driven to compress upward, the volume of the upper air cavity decreases, a positive pressure is generated, the air inlet valve piece is closed, and the air outlet valve piece is opened. Gas flows out from the top cover; through the continuous inhalation and discharge of the air flow, a stable flow rate is formed.

Claims

1. A low-noise electromagnetic air pump, characterized in that: It includes a pump body, a magnet, a magnetic bowl, a vibration assembly, a pump body and a top cover. The magnet is fixedly arranged at the bottom of the pump body, and a magnetic bowl is arranged between the magnet and the bottom and side surfaces of the pump body; the vibration assembly includes a coil, an annular skeleton and a diaphragm. The coil is wound in the annular groove of the annular plastic skeleton to form a movable coil. The diaphragm is hermetically arranged at the top end of the pump body, and the diaphragm and the movable coil form a vibration unit through potting; the pump body is arranged at the top end of the pump body, the pump body is provided with an air inlet and an air outlet, and check valves are arranged at the air inlet and the air outlet. The top cover is arranged on the pump body.

2. The low-noise electromagnetic air pump according to claim 1, wherein: The top cover is respectively provided with an air inlet cavity communicated with the air inlet of the pump body and an air outlet end communicated with the air outlet; the air inlet cavity is provided with a plurality of air inlet holes, and a sponge is filled in the air inlet cavity.

3. The low-noise electromagnetic air pump according to claim 1, wherein: The diaphragm is made of silica gel, and the magnetic bowl is made of silicon steel or ferrite.

4. The low-noise electromagnetic air pump according to claim 1, characterized in that: A spring gasket is further arranged at the top of the magnet.

5. The low-noise electromagnetic air pump according to claim 1, wherein: The annular skeleton is made of plastic and includes a skeleton bottom and an annular barrel wall. The annular barrel wall is provided with an annular groove for winding the coil.

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