CN210033788U - Miniature air pump - Google Patents
Miniature air pump Download PDFInfo
- Publication number
- CN210033788U CN210033788U CN201920565129.5U CN201920565129U CN210033788U CN 210033788 U CN210033788 U CN 210033788U CN 201920565129 U CN201920565129 U CN 201920565129U CN 210033788 U CN210033788 U CN 210033788U
- Authority
- CN
- China
- Prior art keywords
- air
- compression
- base
- eccentric wheel
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000006835 compression Effects 0.000 claims abstract description 61
- 238000007906 compression Methods 0.000 claims abstract description 61
- 238000001125 extrusion Methods 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 15
- 239000013013 elastic material Substances 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- Reciprocating Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a miniature air pump, including motor element and pump gas subassembly, pump gas subassembly contains the base, the upper cover, at least two compression air bags, and gasbag mount, motor element contains the motor mount pad of connection on the base, install the motor on the motor mount pad, be equipped with the compression chamber in each compression air bag, be equipped with the chamber of giving vent to anger between base and the upper cover, be equipped with the first air guide passageway that is used for communicating compression chamber and chamber of giving vent to anger on the base, be equipped with only the check valve A that supplies gas to flow from the compression chamber to the chamber of giving vent to anger on the first air guide passageway, be equipped with the chamber of admitting air between motor mount pad and the base, be equipped with the second air guide passageway that communicates chamber of admitting air and compression chamber between base and the gasbag mount, be equipped with only the check valve B that supplies gas; has the advantages of stable operation, small vibration and low noise during operation.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a miniature air pump.
[ background of the invention ]
The micro air pump has a wide application field, such as a micro air pump for sampling air of portable instruments, mobile and handheld devices, a micro air pump for outputting compressed air and the like. The motor drives the eccentric structure to pull the tail end of the air bag to move up and down, so that the air bag is stretched or compressed to suck or exhaust air.
The existing miniature air pump has the disadvantages of unreasonable structural design, and large vibration and noise when the guide pillar runs.
[ Utility model ] content
In order to solve the technical problem, the utility model discloses a miniature air pump, including motor element and pump gas subassembly, pump gas subassembly contain base, upper cover, at least two compression gasbag and be used for fixing each compression gasbag fixing frame on the base, motor element contain the motor mount pad that connects on the base, the motor mount pad on install the motor, be equipped with the compression chamber in each compression gasbag, base and upper cover between be equipped with the air outlet chamber, the base on be equipped with the first air guide channel that is used for communicating compression chamber and air outlet chamber, the first air guide channel on be equipped with only supply gas to flow to the check valve A in air outlet chamber from the compression chamber, motor mount pad and base between be equipped with the air inlet chamber, base and gasbag fixing frame between be equipped with the second air guide channel that communicates air inlet chamber and compression chamber, the second air guide channel is provided with a check valve B only for allowing air to flow from the air inlet cavity to the compression cavity, the base is further provided with an air outlet communicated with the air outlet cavity, the base is further provided with an air inlet communicated with the air inlet cavity, an output shaft of the motor is provided with a driving component for driving each compression air bag to act, the driving component comprises an eccentric wheel, a connecting shaft and an extrusion swinging block, the eccentric wheel is connected to the output shaft of the motor, the eccentric wheel is provided with an installation blind hole, the axis of the installation blind hole is inclined relative to the rotating shaft of the eccentric wheel, one end of the connecting shaft is slidably connected in the installation blind hole, an elastic ball made of elastic material is arranged between the installation blind hole and the connecting shaft, the extrusion swinging block is connected to the other end of the motor, the bottom of each compression air bag is provided with a connector, and the extrusion swinging block is provided, each compression balloon is moved with the squeezing swing block.
According to the miniature air pump, the eccentric wheel is provided with the positioning structure for positioning the eccentric wheel.
The miniature air pump comprises a first positioning groove and a second positioning groove which are arranged on an eccentric wheel, the first positioning groove and the second positioning groove are parallel to each other, the distance from the side edge of the first positioning groove to the rotating shaft of the eccentric wheel is d, and d satisfies the following conditions: d is more than or equal to 1.8mm and less than or equal to 2.1mm, and the distance from the side edge of the second positioning groove to the rotating shaft of the eccentric wheel is w, wherein w is more than or equal to 2.4mm and less than or equal to 2.7 mm.
According to the miniature air pump, the included angle between the axis of the mounting blind hole and the rotating shaft of the eccentric wheel is α, wherein α satisfies that 9 degrees is larger than or equal to α degrees and smaller than or equal to 13 degrees.
According to the miniature air pump, the air pumping assembly comprises two compression air bags, the two compression air bags are symmetrically connected to the base, the output shaft of the motor is located at the symmetric center of the two compression air bags, and the two compression air bags are integrally formed by elastic materials.
Compared with the prior art, the utility model has the advantages of as follows:
1. the utility model discloses a drive assembly contains eccentric wheel, connecting axle and extrusion swing piece, is equipped with the installation blind hole on the eccentric wheel, through the one end sliding connection with the connecting axle in the installation blind hole, is equipped with between installation blind hole and connecting axle and adopts elastic material to make at the elastic ball, and the elastic ball enables to extrude and keeps the zonulae occludens state between swing piece and the compression gasbag, reduces the connecting axle, extrudes the clearance between swing piece, the compression gasbag, noise reduction.
2. The bottom of each compression air bag is provided with a connector, the extrusion swinging block is provided with connecting holes which are in one-to-one correspondence with the connectors, so that the connectors can be tightly embedded into the connecting holes, each compression air bag moves along with the extrusion swinging block, and the compression air bag has the advantages of stable operation, small vibration during operation and low noise.
[ description of the drawings ]
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is one of exploded views of the present invention;
fig. 3 is a second exploded view of the present invention;
fig. 4 is a top view of the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is a perspective sectional view of the airbag fixing frame, the base, the compression airbag and the upper cover of the present invention after being assembled;
fig. 7 is a bottom view of the upper cover of the present invention;
fig. 8 is a full sectional view of the drive assembly of the present invention;
fig. 9 is a bottom view of the eccentric center of the present invention.
[ detailed description ] embodiments
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 9, the micro air pump of this embodiment includes a motor assembly 1 and a pump assembly 2, the pump assembly 2 includes a base 21, an upper cover 22, at least two compression air bags 23 and an air bag fixing frame 24 for fixing the two compression air bags 23 on the base 21, the two compression air bags 23 are integrally formed by elastic material, the two compression air bags 23 are symmetrically connected to the base 21, the motor assembly 1 includes a motor mounting seat 11 connected to the base 21, a motor 12 is mounted on the motor mounting seat 11, an output shaft of the motor 12 is located at a symmetric center of the two compression air bags 23, a compression cavity 201 is provided in each compression air bag 23, an air outlet cavity 202 is provided between the base 21 and the upper cover 22, the base 21 is provided with a first air guide channel 203 for communicating the compression cavity 201 and the air outlet cavity 202, the first air guide channel 203 is provided with a one-way valve a25 for allowing air to flow from the compression cavity 201 to the air outlet cavity 202 An air inlet cavity 204 is arranged between the motor mounting seat 11 and the base 21, a second air guide channel 205 communicating the air inlet cavity 204 and the compression cavity 201 is arranged between the base 21 and the air bag fixing frame 24, a one-way valve B26 only allowing air to flow from the air inlet cavity 204 to the compression cavity 201 is arranged on the second air guide channel 205, an air outlet 27 communicating with the air outlet cavity 202 is further arranged on the base 21, an air inlet 28 communicating with the air inlet cavity 204 is further arranged on the base 21, a driving component 13 for driving each compression air bag 23 to act is arranged on an output shaft of the motor 12, the driving component 13 comprises an eccentric wheel 131, a connecting shaft 132 and an extrusion swinging block 133, the eccentric wheel 131 is connected to the output shaft of the motor 12, a mounting blind hole 1311 is arranged on the eccentric wheel 131, and the axis of the mounting blind hole 1311 is inclined relative to the rotating shaft of the eccentric wheel 131, one end of the connecting shaft 132 is slidably connected in the mounting blind hole 1311, an elastic ball 134 made of elastic material is arranged between the mounting blind hole 1311 and the connecting shaft 132, the extrusion swinging block 133 is connected at the other end of the connecting shaft 132, a connecting head 231 is arranged at the bottom of each compression air bag 23, and connecting holes 1331 corresponding to the connecting heads 231 one by one are formed in the extrusion swinging block 133, so that each compression air bag 23 moves along with the extrusion swinging block 133. The utility model discloses a drive assembly contains eccentric wheel, connecting axle and extrusion swing piece, is equipped with the installation blind hole on the eccentric wheel, through with the one end sliding connection of connecting axle in the installation blind hole, be equipped with between installation blind hole and connecting axle and adopt elastic material to make at the elastic ball, the elastic ball enables to extrude and keeps the closely connected state between swing piece and the compression gasbag, reduces the connecting axle, extrudes the clearance between swing piece, the compression gasbag, reduces the noise; the bottom of each compression air bag is provided with a connector, the extrusion swinging block is provided with connecting holes which are in one-to-one correspondence with the connectors, so that the connectors can be tightly embedded into the connecting holes, each compression air bag moves along with the extrusion swinging block, and the compression air bag has the advantages of stable operation, small vibration during operation and low noise.
In order to facilitate the eccentric wheel to be well positioned during the eccentric wheel assembly, a positioning structure for positioning the eccentric wheel 131 is arranged on the eccentric wheel 131.
In this embodiment, the positioning structure includes a first positioning groove 1312 and a second positioning groove 1313 disposed on the eccentric wheel 131, the first positioning groove 1312 and the second positioning groove 1313 are parallel to each other, a side of the first positioning groove 1312 deviates from a rotation axis of the eccentric wheel 131 by a distance d, where d satisfies: d is more than or equal to 1.8mm and less than or equal to 2.1mm, the side edge of the second positioning groove 1313 deviates from the rotating shaft of the eccentric wheel 131 by a distance w, wherein w satisfies: w is more than or equal to 2.4mm and less than or equal to 2.7 mm. The first locating groove and the second locating groove are different in distance from the rotating shaft of the eccentric wheel, so that the direction can be conveniently found, the reverse installation in the assembling process is prevented, and the assembling efficiency is improved.
In the embodiment, the included angle between the axis of the mounting blind hole 1311 and the rotating shaft of the eccentric wheel 131 is α, wherein α satisfies that α is larger than or equal to 9 degrees and 13 degrees, and the noise of the air pump during operation can be reduced.
Claims (5)
1. A miniature air pump is characterized by comprising a motor component (1) and an air pumping component (2), wherein the air pumping component (2) comprises a base (21), an upper cover (22), at least two compression air bags (23) and an air bag fixing frame (24) for fixing each compression air bag (23) on the base (21), the motor component (1) comprises a motor mounting seat (11) connected on the base (21), a motor (12) is mounted on the motor mounting seat (11), a compression cavity (201) is arranged in each compression air bag (23), an air outlet cavity (202) is arranged between the base (21) and the upper cover (22), the base (21) is provided with a first air guide channel (203) for communicating the compression cavity (201) with the air outlet cavity (202), the first air guide channel (203) is provided with a one-way valve A (25) for only allowing air to flow from the compression cavity (201) to the air outlet cavity (202), the air compressor is characterized in that an air inlet cavity (204) is arranged between the motor mounting seat (11) and the base (21), a second air guide channel (205) communicated with the air inlet cavity (204) and the compression cavity (201) is arranged between the base (21) and the air bag fixing frame (24), a one-way valve B (26) only allowing air to flow from the air inlet cavity (204) to the compression cavity (201) is arranged on the second air guide channel (205), an air outlet (27) communicated with the air outlet cavity (202) is further arranged on the base (21), an air inlet (28) communicated with the air inlet cavity (204) is further arranged on the base (21), a driving assembly (13) for driving each compression air bag (23) to act is arranged on an output shaft of the motor (12), the driving assembly (13) comprises an eccentric wheel (131), a connecting shaft (132) and an extrusion swinging block (133), the eccentric wheel (131) is connected to an output shaft of the motor (12), eccentric wheel (131) on be equipped with installation blind hole (1311), the rotation axis slope of the relative eccentric wheel of axis (131) of installation blind hole (1311), the one end sliding connection of connecting axle (132) is in installation blind hole (1311), be equipped with between installation blind hole (1311) and connecting axle (132) and adopt elastic material to make at elastic ball (134), extrusion swing piece (133) connect the other end at connecting axle (132), the bottom of each compression gasbag (23) is equipped with connector (231), extrusion swing piece (133) on be equipped with connecting hole (1331) with connector (231) one-to-one, make each compression gasbag (23) along with extrusion swing piece (133) motion.
2. The miniature air pump according to claim 1, wherein said eccentric wheel (131) is provided with a positioning structure for positioning said eccentric wheel (131).
3. The micro air pump according to claim 2, wherein the positioning structure comprises a first positioning groove (1312) and a second positioning groove (1313) disposed on the eccentric wheel (131), the first positioning groove (1312) and the second positioning groove (1313) are parallel to each other, a side of the first positioning groove (1312) is offset from a rotation axis of the eccentric wheel (131) by a distance d, wherein d satisfies: d is more than or equal to 1.8mm and less than or equal to 2.1mm, the distance from the side edge of the second positioning groove (1313) to the rotating shaft of the eccentric wheel (131) is w, wherein w satisfies: w is more than or equal to 2.4mm and less than or equal to 2.7 mm.
4. A micro air pump according to claim 1, characterized in that the included angle between the axis of the blind mounting hole (1311) and the rotation axis of the eccentric (131) is α, wherein α satisfies 9 ° ≦ α ≦ 13 °.
5. The miniature air pump according to claim 1, wherein said pumping assembly (2) comprises two compression air bags (23), said two compression air bags (23) are symmetrically connected to said base (21), said output shaft of said motor (12) is located at the symmetrical center of said two compression air bags (23), said two compression air bags (23) are integrally formed by using elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920565129.5U CN210033788U (en) | 2019-04-23 | 2019-04-23 | Miniature air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920565129.5U CN210033788U (en) | 2019-04-23 | 2019-04-23 | Miniature air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210033788U true CN210033788U (en) | 2020-02-07 |
Family
ID=69361133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920565129.5U Expired - Fee Related CN210033788U (en) | 2019-04-23 | 2019-04-23 | Miniature air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210033788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594154A (en) * | 2020-12-11 | 2021-04-02 | 江西龙芯气体系统有限公司 | Miniature air compressor |
-
2019
- 2019-04-23 CN CN201920565129.5U patent/CN210033788U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594154A (en) * | 2020-12-11 | 2021-04-02 | 江西龙芯气体系统有限公司 | Miniature air compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |