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 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 invention mainly relates to a method for realizing a low-noise electromagnetic air pump. Background Art

[0002] At present, the air source of the car seat comfort system - pneumatic products comes from the air pump, and the air source provided by the air pump realizes the function of the product. The existing technology drives the eccentric wheel to rotate through the motor → the eccentric wheel drives the leather cup bracket to move up and down in an arc through the steel needle → the leather cup bracket pushes the leather cup to do reciprocating motion → the leather cup stretches downward, the volume of the leather cup airbag increases, a vacuum cavity is generated, the outlet valve plate is closed, the inlet valve plate is opened, the gas enters the airway from the air inlet, and enters the airbag through the inlet valve plate → the leather cup is compressed upward, the volume of the leather cup airbag decreases, positive pressure is generated, the inlet valve plate is closed, the outlet valve plate is opened, and the airbag squeezes the gas through the valve plate and out of the outlet hole → the motor keeps running, and the airflow is continuous Continuous inhalation and discharge, stable flow rate bracket moves up and down in an arc → the cup bracket pushes the cup to do reciprocating motion → the cup stretches downward, the cup airbag volume increases, a vacuum chamber is generated, the outlet valve is closed, the inlet valve is opened, the gas enters the airway from the inlet, and enters the airbag through the inlet valve → the cup is compressed upward, the cup airbag volume decreases, positive pressure is generated, the inlet valve is closed, the outlet valve is opened, the airbag squeezes the gas through the valve plate and out of the outlet hole → the motor keeps running, the airflow is continuously inhaled and discharged, and the flow rate is stable. The existing technology uses motor drive, which is noisy and large in size, which is not conducive to miniaturization design. Summary of the invention

[0003] Purpose of the invention: In view of the above existing problems and shortcomings, the purpose of the present invention is to provide a low-noise electromagnetic air pump.

[0004] Technical solution: To achieve the above invention purpose, the present invention adopts the following technical solution: a low-noise electromagnetic air pump, including a pump body, a magnet, a magnetic bowl, a vibration component, a pump body and a top cover, The magnet is fixed at the bottom of the pump body, and a magnetic bowl is provided between the magnet and the bottom and side of the pump body; the vibration assembly includes a coil, an annular frame and a diaphragm, the coil is wound in an annular groove of the annular plastic frame to form an active coil, the diaphragm is sealed at the top of the pump body, and the diaphragm and the active coil form a vibrating whole through sealing glue; the pump body is provided at the top 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 provided on the pump body.

[0005] Preferably, the top cover is provided with an air inlet cavity connected with the air inlet of the pump body, and an air outlet end connected 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.

[0006] Preferably, the diaphragm is made of silicone, and the magnetic bowl is made of silicon steel or ferrite.

[0007] Preferably, a spring washer is also provided on the top of the magnet.

[0008] Preferably, the annular frame is made of plastic, and comprises a frame bottom and an annular cylinder wall, wherein the annular cylinder wall is provided with an annular groove for winding the coil.

[0009] Beneficial effects: Compared with the prior art, the low-noise electromagnetic air pump of the present invention adopts an electromagnetically driven diaphragm to generate airflow instead of a motor drive, has low noise and improves comfort, and has a simple and reliable structure. Due to the use of an electromagnetic drive method, the size can be smaller, which is convenient for space layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the low-noise electromagnetic air pump of the present invention.

[0011] Figure 2 It is a schematic cross-sectional structural diagram of the low-noise electromagnetic air pump of the present invention.

[0012] Figure 3 This is a schematic diagram of the working principle of the low-noise electromagnetic air pump of the present invention.

[0013] Among them, the pump body 1, the magnet 2, the magnetic bowl 3, the vibration component 3, the pump body 4, the top cover 5, the coil 6, the annular skeleton 7, the diaphragm 8, the check valve 9, the air inlet 10, the air outlet 11, the air inlet cavity 12, the sponge 13, the spring gasket 14, and the air inlet hole 15. DETAILED DESCRIPTION

[0014] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0015] like Figure 1 and 2 As shown, the electromagnetic air pump of the present invention mainly comprises a pump body, a top cover, a diaphragm, a check valve, a movable coil, a washer (spring gasket), a magnet, a magnetic bowl and a top cover.

[0016] The magnet is fixed at the bottom of the pump body, and a magnetic bowl is provided between the magnet and the bottom and side of the pump body; the vibration assembly includes a coil, an annular frame and a diaphragm, the coil is wound in an annular groove of the annular plastic frame to form an active coil, the diaphragm is sealed at the top of the pump body, and the diaphragm and the active coil form a vibrating whole through sealing glue; the pump body is provided at the top 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 provided on the pump body.

[0017] As a preferred solution, the top cover is respectively provided with an air inlet cavity connected to the air inlet of the pump body, and an air outlet end connected to 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.

[0018] like Figure 3 As shown, the active coil is passed through a positive voltage to drive the diaphragm to stretch downward, the volume of the upper cavity increases, a vacuum cavity is generated, the outlet valve is closed, the inlet valve is opened, and the gas enters the upper cavity from the air inlet. The active coil is passed through a reverse voltage to drive the diaphragm to compress upward, the volume of the upper cavity decreases, positive pressure is generated, the inlet valve is closed, the outlet valve is opened, and the gas flows out from the top cover; through the continuous inhalation and discharge of the airflow, a stable flow rate is formed.

Claims

1. A low-noise electromagnetic air pump, characterized in that: Including pump body, magnet, magnetic bowl, vibration assembly, pump body and top cover, The magnet is fixed at the bottom of the pump body, and a magnetic bowl is provided between the magnet and the bottom and side of the pump body; the vibration assembly includes a coil, an annular frame and a diaphragm, the coil is wound in an annular groove of the annular plastic frame to form an active coil, the diaphragm is sealed at the top of the pump body, and the diaphragm and the active coil form a vibrating whole through sealing glue; the pump body is provided at the top 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 provided on the pump body.

2. The low-noise electromagnetic air pump according to claim 1, characterized in that: 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.

3. The low-noise electromagnetic air pump according to claim 1, characterized in that: 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 washer is also provided on the top of the magnet.

5. The low-noise electromagnetic air pump according to claim 1, characterized in that: The annular frame is made of plastic and comprises a frame bottom and an annular cylinder wall. The annular cylinder wall is provided with an annular groove for winding the coil.

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