CN108343584B

CN108343584B - Miniature air pump

Info

Publication number: CN108343584B
Application number: CN201810419695.5A
Authority: CN
Inventors: 李涛; 沈宇珑
Original assignee: Changzhou Flextail Technology Co ltd
Current assignee: Changzhou Flextail Technology Co ltd
Priority date: 2018-05-04
Filing date: 2018-05-04
Publication date: 2023-10-03
Anticipated expiration: 2038-05-04
Also published as: CN108343584A

Abstract

The invention provides a miniature air pump, and relates to the technical field of air pumps. The miniature air pump includes: the shell is internally provided with a first working cabin and a second working cabin, the first working cabin comprises a first cabin and an air charging connecting part, the second working cabin comprises a second cabin, a third cabin and an air pumping connecting part, the first cabin and the second cabin can be communicated through a connecting channel, the first cabin is communicated with the air charging connecting part, and the second cabin is communicated with the air pumping connecting part. The air inlet of the micro air pump is positioned in the second cabin, and the air outlet of the micro air pump is positioned in the first cabin. An impeller. The output end of the first motor is connected with the impeller, and the first motor and the impeller are arranged in the second cabin. The sealing assembly is arranged in the first cabin and used for closing or opening the connecting channel. And the controller is arranged on the shell and used for controlling the start and stop of each component. The miniature air pump can meet different inflation and deflation requirements, has diversified functions and is very convenient to use.

Description

Miniature air pump

Technical Field

The invention relates to the technical field of air pumps, in particular to a miniature air pump.

Background

The miniature air pump is a gas conveying device which has small volume and gaseous working medium and is mainly used for various purposes such as gas sampling, gas circulation, vacuum adsorption, vacuum pressure maintaining, air extraction, air inflation, pressurization and the like.

The miniature air pump is divided into: the device comprises a miniature negative pressure pump, a miniature vacuum pump, a miniature gas circulation pump, a miniature air pump, a miniature gas sampling pump, a miniature pumping and pumping dual-purpose pump and the like; according to the working principle, there are diaphragm type, electromagnetic type, impeller type, piston type and the like. The miniature air pump which is widely applicable in the industries of medical health, scientific research, laboratory, environmental protection, instruments, chemical industry and the like mainly refers to a miniature vacuum pump.

The existing miniature air pump has the following problems:

the inflatable cushion is not easy to be filled when inflated for some larger products (such as swim rings, life jackets, inflatable dampproof cushions, rubber boats and the like), and has lower efficiency when in air suction; when the vehicle-mounted power supply is used outdoors, a power supply is not convenient, the alternating current air pump cannot be used, and the vehicle-mounted power supply needs to be pulled to be long, so that the vehicle-mounted power supply is inconvenient to use. When the indoor use, power cord length is restricted, also influences the convenience.

For some products with larger air pressure requirements and smaller volumes (such as balloons, basketball, and the like), the inflation efficiency is low;

the vacuum pump has low pumping efficiency on some products (such as vacuum belts, vacuum storage bags and the like) needing to be vacuumized, cannot vacuumize well, and possibly has gas residues.

Disclosure of Invention

The invention aims to provide a miniature air pump which can meet the air charging and discharging requirements of products with different sizes in various working modes, improve the air charging and discharging efficiency and ensure the air charging and discharging effect.

Embodiments of the present invention are implemented as follows:

an embodiment of the present invention provides a micro air pump, including:

the device comprises a shell, wherein a first working cabin and a second working cabin are arranged in the shell, the first working cabin comprises a first cabin and an inflation connecting part used for being connected with a product to be inflated, the second working cabin comprises a second cabin, a third cabin and an air extraction connecting part used for being connected with the product to be extracted, the first cabin and the second cabin can be communicated through a connecting channel, the first cabin is communicated with the inflation connecting part, and the second cabin is communicated with the air extraction connecting part;

the air inlet of the micro air pump is positioned in the second cabin, and the air outlet of the micro air pump is positioned in the first cabin;

an impeller;

the output end of the first motor is connected with the impeller, and the first motor and the impeller are arranged in the second cabin;

the sealing assembly is arranged in the first cabin and is used for sealing or opening the connecting channel;

and the controller is arranged on the shell and used for controlling the start and stop of the micro air pump, the first motor and the sealing assembly.

In addition, the micro air pump provided by the embodiment of the invention can also have the following additional technical characteristics:

in an alternative embodiment of the invention, the sealing assembly comprises an elastic assembly, a sealing slide block and a second motor, wherein the elastic assembly is abutted with the sealing slide block and enables the sealing slide block to have a trend of pressing towards the opening direction of the connecting channel, and the second motor is in transmission connection with the sealing slide block and is used for enabling the sealing slide block to shade or unblock the opening of the connecting channel.

In an alternative embodiment of the present invention, the sealing slider has a threaded portion, the sealing assembly further includes a screw, the output end of the second motor is in driving connection with the screw, and the screw is in threaded engagement with the threaded portion.

In an alternative embodiment of the present invention, the elastic component includes an elastic member and an extrusion seat, the elastic member is disposed between the extrusion seat and a bulkhead of the first cabin, the extrusion seat has a through hole, the elastic member makes the extrusion seat extrude on a side of the sealing slider away from the connection channel, and when the sealing slider is unblocked, the through hole of the extrusion seat is communicated with the opening of the connection channel.

In an alternative embodiment of the present invention, the sealing assembly further includes a sealing ring, where the sealing ring is disposed at the opening of the connection channel, and when the sealing slider shields the opening of the connection channel, the sealing slider is attached to the sealing ring.

In an alternative embodiment of the invention, the sealing slider is a metal piece.

In an alternative embodiment of the present invention, the housing includes a main body, a first cover, and a second cover, the air-filling connection portion is located on the main body, the air-extracting connection portion is located on the first cover, the first cover is connected with the main body and encloses the second cabin, the second cover is connected with the main body and encloses the third cabin, and the first cover, the second cover, and the main body enclose the first cabin together.

In an alternative embodiment of the invention, the volume of the first compartment is smaller than the sum of the volume of the second compartment and the volume of the third compartment.

In an alternative embodiment of the present invention, the micro air pump further comprises a battery, wherein the battery is disposed in the third chamber, and the battery is used for supplying power to the controller, the first motor, the micro air pump and the sealing assembly.

In an alternative embodiment of the present invention, the micro air pump includes a switch, the switch is disposed on the housing, and the switch is electrically connected to the controller.

The beneficial effects of the invention are as follows:

the miniature air pump can be according to the difference of product, fills the demand difference of gassing, changes different modes in order to satisfy the demand. One device can meet different requirements, has diversified functions, is very convenient to use, and has guaranteed use effect. The inflation efficiency and the air pressure of the product with higher air pressure requirements are improved, and the deflation efficiency and the vacuum degree of the product with larger volume are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an isometric view of a miniature air pump provided in an embodiment of the present invention;

FIG. 2 is a schematic view of FIG. 1 with the first cover removed;

FIG. 3 is an enlarged partial view of portion A of FIG. 2;

FIG. 4 is an enlarged partial view of portion B of FIG. 2;

FIG. 5 is a schematic view of another view of FIG. 2;

FIG. 6 is a schematic view of another view of FIG. 1;

FIG. 7 is a schematic view of FIG. 6 with the second cover removed;

FIG. 8 is a schematic view of the body of the housing with the plastic sleeve removed;

fig. 9 is a schematic view of another view of fig. 8.

Icon: 100-miniature air pump; 10-a housing; 112-a first compartment; 114-an inflation connection; 132-a second compartment; 134-a third compartment; 136-an air extraction connection; 15-a body; 152-plastic sleeve; 16-a first cover; 17-a second cover; 30-a micro air pump; 31-air inlet; 33-an air outlet; 50-impeller; 60-a first motor; 70-a seal assembly; 712-elastic members; 714—an extrusion seat; 73-sealing a slider; 732-threaded portion; 75-a second motor; 77-screw rod; 80-a controller; a 90-switch; 101-connection channels.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.

Examples

Referring to fig. 1 to 9, the present embodiment provides a micro air pump 100, which includes:

the device comprises a shell 10, wherein the interior of the shell 10 is provided with a first working cabin and a second working cabin, the first working cabin comprises a first cabin 112 and an inflation connecting part 114 used for being connected with a product to be inflated, the second working cabin comprises a second cabin 132, a third cabin 134 and an air extraction connecting part 136 used for being connected with the product to be extracted, the first cabin 112 and the second cabin 132 can be communicated through a connecting channel 101, the first cabin 112 is communicated with the inflation connecting part 114, and the second cabin 132 is communicated with the air extraction connecting part 136;

the micro air pump 30, the air inlet 31 of the micro air pump 30 is positioned in the second cabin 132, and the air outlet 33 of the micro air pump 30 is positioned in the first cabin 112;

an impeller 50;

the output end of the first motor 60 is connected with the impeller 50, and the first motor 60 and the impeller 50 are both arranged in the second cabin 132;

a seal assembly 70, the seal assembly 70 being disposed in the first chamber 112 and being used for closing or opening the connection channel 101;

the controller 80, the controller 80 is disposed on the housing 10 and is used for controlling the start and stop of the micro air pump 30, the first motor 60 and the sealing assembly 70.

The micro air pump 30 is a much smaller air pump than a general large air pump, and the structure and function of the micro air pump 30 can be referred to as a general micro air pump 30, which is not described herein. In this embodiment, the micro air pump 30 is disposed in the first chamber 112.

In this embodiment, the controller 80 is a PCB board, and the PCB board is disposed in the third chamber 134. In addition to the third chamber 134, the pcb may be disposed in the first chamber 112 or the second chamber 132 according to the volume, as long as the control requirement is satisfied.

Specifically, the seal assembly 70 includes an elastic assembly, a seal slider 73, and a second motor 75, where the elastic assembly abuts against the seal slider 73 and makes the seal slider 73 have a tendency to press toward the opening direction of the connection channel 101, and the second motor 75 is in driving connection with the seal slider 73 and is used to block or unblock the opening of the connection channel 101 from the seal slider 73.

Further, the sealing slider 73 has a threaded portion 732, and the sealing assembly 70 further includes a screw rod 77, and an output end of the second motor 75 is in driving connection with the screw rod 77, and the screw rod 77 is in threaded engagement with the threaded portion 732.

Further, the elastic assembly includes an elastic member 712 and a pressing seat 714, the elastic member 712 is disposed between the pressing seat 714 and the bulkhead of the first chamber 112, the pressing seat 714 has a through hole, the elastic member 712 presses the pressing seat 714 on a side of the sealing slider 73 away from the connection channel 101, and when the sealing slider 73 is unblocked, the through hole of the pressing seat 714 is communicated with the opening of the connection channel 101.

The elastic member 712 may be a spring, a disc spring, a shrapnel, or the like, and in this embodiment, the elastic member 712 is a spring.

The sealing assembly 70 further comprises a sealing ring, the sealing ring is arranged at the opening of the connecting channel 101, and when the sealing slide block 73 shields the opening of the connecting channel 101, the sealing slide block 73 is attached to the sealing ring.

In the present embodiment, the seal slider 73 is a metal member. Besides the metal piece, the metal piece or the plastic piece can also be used for meeting the shielding requirement, and the metal piece is selected for reducing the friction resistance, so that the opening and closing of the connecting channel 101 can be controlled better and smoother.

Specifically, the housing 10 includes a main body 15, a first cover 16, and a second cover 17. The body 15 is externally wrapped with a plastic sleeve 152. The air charging connection part 114 is located on the main body 15, the air exhausting connection part 136 is located on the first cover 16, the first cover 16 is connected with the main body 15 and encloses the second cabin 132, the second cover 17 is connected with the main body 15 and encloses the third cabin 134, and the first cover 16, the second cover 17 and the main body 15 enclose the first cabin 112 together.

The joints between the first cover 16, the second cover 17 and the main body 15 need to be sealed.

To provide a high pressure environment, the volume of the first chamber 112 is less than the sum of the volume of the second chamber 132 and the volume of the third chamber 134.

In addition to the above components, the micro air pump 100 further includes a battery disposed in the third chamber 134 for powering the controller 80, the first motor 60, the micro air pump 30, and the sealing assembly 70.

Besides the battery, the power supply interface can be arranged to externally connect a power supply to supply power to the components. Such as a USB interface, etc.

The micro air pump 100 includes a switch 90, the switch 90 is disposed on the housing 10, and the switch 90 is electrically connected to the controller 80. The switch 90 can control the connection or disconnection of the circuit, and the controller 80 can control the operation of each component after the circuit is connected. In detail, the short-press switch 90 may start the micro air pump 30, and the long-press switch 90 may control the sealing slider 73 to block the opening of the connection channel 101, so that the first chamber 112 and the second chamber 132 are blocked. The second motor 75 is turned on by the short-press switch 90, the sealing slide block 73 is turned on by the screw rod 77 to enable the connecting channel 101 to be smooth, meanwhile, the impeller 50 is driven by the first motor 60 to perform high-flow inflation, and at the moment, the product can be closed by the short-press switch 90 to seal the connecting channel 101. The long-press switch 90 (the state of the connecting channel 101 is closed, or the state of the connecting channel 101 is closed and the state is switched to the first direct long-press switch 90), and the micro air pump 30 is opened to perform high-pressure air inflation or air suction.

The principle of this embodiment is:

aiming at different products, the inflatable and deflatable devices have some effective requirements, some requirements of filling or vacuumizing, the conventional inflatable and deflatable devices can not well meet various requirements, and if the inflatable and deflatable devices are used for realizing inflation and deflation of various products, the inflatable and deflatable devices are troublesome and have a lot of cost. For such a status quo, the present embodiment provides a micro air pump 100.

Specifically, by controlling the opening and closing of the connection channel 101 and the operation of the first motor 60 or the micro air pump 30, the switching of multiple modes can be realized, so as to meet different use requirements. The connection channel 101 is in a micro-pressure mode when connected, and in a high-pressure mode when the connection channel 101 is closed.

The main modes of operation are as follows:

1. micro-pressure inflation mode (pressure is small, about 2 kpa), and larger products such as swim rings, life jackets, inflatable dampproof pads, and boats are inflated. The power is 15W-20W.

The working mode is as follows: the inflated product is connected to the inflation connecting portion 114, the sealing slider 73 is opened, and the first motor 60 drives the impeller 50 to inflate, so that the air flow rate is about 90L/min.

2. High pressure inflation mode (higher pressure, above 70 kpa) for small products such as balloons, basketball. The power is 1W-2W.

The working mode is as follows: the inflated product is connected to the inflation connection 114, the sealing slider 73 is closed, and inflation is performed by the micro air pump 30, and the air flow rate is about 2.5L/min.

3. Micro-pressure pumping mode (pressure is smaller and is about 2 kpa), pumping larger products such as swim rings, life jackets, inflatable dampproof pads and rubber boats. The power is 15W-20W.

The working mode is as follows: the product to be pumped is connected to the pumping connection part 136, the sealing slide block 73 is opened, the first motor 60 drives the impeller 50 to pump air, and the air flow is about 90L/MIN

4. High pressure pumping mode (pressure is higher, above 70 kpa) for small products such as vacuum belts, vacuum storage bags. Power of 1-2W

The working mode is as follows: the product to be pumped is connected to the pumping connection 136, the sealing slider 73 is closed, pumping is performed by the micro air pump 30, and the air flow is about 2.5L/MIN

5. Micro-pressure inflation mode-high pressure inflation mode, for inflating larger products, such as swim rings, life jackets, inflatable dampproof pads, rubber boats. 15W-20W-1-2W.

The working mode is as follows: when the product to be inflated is filled up quickly, the impeller 50 is driven by the first motor 60 to inflate, and the product to be inflated cannot be continuously filled up due to insufficient air pressure in the micro-pressure mode, at the moment, the switch 90 is pressed for a long time, the sealing slider 73 is closed, the high-pressure inflation mode is switched to, the product to be inflated is continuously inflated up to be full at a higher air pressure, and the air flow is about 90L/min-2.5L/min. The method is particularly suitable for larger products, and because the larger products need larger inflation amount, the products can be quickly inflated by micro-pressure and high flow in the early stage, and then are inflated by high pressure.

6. Micro-pressure pumping mode-high pressure pumping mode, pumping larger products such as swim rings, life jackets, inflatable dampproof pads and rubber boats. Power 15W-20W-power 1-2W

The working mode is as follows: the product to be pumped is connected to the pumping connection part 136, the sealing slide block 73 is opened, the first motor 60 drives the impeller 50 to pump, when the product is pumped to be fast empty, the pumped product cannot be pumped out continuously due to insufficient air pressure in the micro-pressure mode, at the moment, the switch 90 is pressed for a long time, the sealing slide block 73 is closed, the high-pressure pumping mode is switched, air is pumped out continuously at a higher air pressure, and the air flow is about 90L/min-2.5L/min. The method is particularly suitable for larger products, and because the required extraction amount of the larger products is larger, air in the products can be rapidly discharged at first by using micro-pressure and high flow in the early stage, and then the products are pumped out by using high pressure, so that the objects can be conveniently stored.

In summary, the micro air pump 100 of the present invention can change different modes according to different products and different requirements of inflation and deflation to meet the requirements. One device can meet different requirements, has diversified functions, is very convenient to use, and has guaranteed use effect.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A miniature air pump, comprising:

an impeller;

the controller is arranged on the shell and used for controlling the start and stop of the micro air pump, the first motor and the sealing assembly; the sealing assembly comprises an elastic assembly, a sealing sliding block and a second motor, wherein the elastic assembly is in butt joint with the sealing sliding block and enables the sealing sliding block to have a trend of extruding towards the opening direction of the connecting channel, and the second motor is in transmission connection with the sealing sliding block and is used for enabling the sealing sliding block to shade or unblock the opening of the connecting channel;

the sealing sliding block is provided with a threaded part, the sealing assembly further comprises a screw rod, the output end of the second motor is in transmission connection with the screw rod, and the screw rod is in threaded fit with the threaded part; the elastic component includes elastic component and extrusion seat, the elastic component set up in between the bulkhead in extrusion seat with first cabin, the extrusion seat has the through-hole, the elastic component makes the extrusion seat extrudees sealing slider keep away from the one side of connecting channel, sealing slider is when unblock, the through-hole of extrusion seat with the opening of connecting channel communicates with each other.

2. The miniature air pump according to claim 1, wherein the sealing assembly further comprises a sealing ring, the sealing ring is disposed at the opening of the connection channel, and the sealing slider is attached to the sealing ring when the sealing slider shields the opening of the connection channel.

3. A miniature air pump according to any of claims 1-2, wherein the sealing slider is a metal piece.

4. The miniature air pump of claim 1, wherein said housing comprises a main body, a first cover and a second cover, said inflation connection is located at said main body, said suction connection is located at said first cover, said first cover is connected with said main body and encloses said second compartment, said second cover is connected with said main body and encloses said third compartment, and said first cover, said second cover and said main body together enclose said first compartment.

5. A miniature air pump according to claim 1 or 4, wherein the volume of the first chamber is less than the sum of the volumes of the second and third chambers.

6. The miniature air pump according to claim 1, further comprising a battery disposed in the third compartment for powering the controller, the first motor, the miniature air pump, and the seal assembly.

7. The miniature air pump of claim 1, comprising a switch disposed in the housing, the switch being electrically connected to the controller.