WO2009102130A2

WO2009102130A2 - Air compressor

Info

Publication number: WO2009102130A2
Application number: PCT/KR2009/000604
Authority: WO
Inventors: Seung Kyun Lee
Original assignee: Seung Kyun Lee
Priority date: 2008-02-11
Filing date: 2009-02-10
Publication date: 2009-08-20
Also published as: KR100961847B1; KR20090086732A; WO2009102130A3

Abstract

The air compressor of the present invention comprises: a tubular outer casing (10); a fixed shaft (20) fixed to the outer casing (10); and a rotary sleeve (30) and an eccentric rotary body (40) supported with freedom to rotate on the fixed shaft (20). The fixed shaft (20) comprises: a central shaft (21) which is provided in the central part of the outer casing (10) and rotary sleeve (30), and which supports the rotary sleeve (30) in a rotatable fashion; and an eccentric shaft (22) which is provided in an eccentric position bending from the central shaft (21), and which supports the eccentric rotary body (40) in a rotatable fashion.

Description

Air compressor

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air compressor, and more particularly, to a portable air compressor having a simple structure and low noise.

Generally, an air compressor is a device that sucks air, compresses it to a predetermined pressure, and supplies compressed air to a related device. The air compressor is connected to a peripheral device for maintaining a constant discharged air pressure and removing moisture and foreign substances in the air. The system is configured.

Such a system comprises an air tank to prevent pulsation of compressed air and a filter to remove foreign substances.

However, such a conventional air compressor has a problem in that the configuration of the air tank and the filtration device is enlarged, which is not only convenient to carry, but also the operation noise is large.

The present invention to achieve the above object is to provide a portable air compressor with a simple structure and low noise.

According to an aspect of the present invention, there is provided an air compressor for introducing compressed air to discharge compressed air at a predetermined pressure, the cylindrical outer case; The inlet hole is formed on the outer circumferential surface of the outer case and is fixed to penetrate both side walls of the outer case. The inlet is formed on the outer circumferential surface of the inlet pipe and the other end of the outer case. A fixed shaft having a central axis at both ends having discharge pipes protruding outwardly, and an eccentric axis bent from the central axis at both ends; A rotating cylinder having both side wall portions rotatably supported on the central shafts of both ends, and having a discharge hole formed on an outer circumferential surface thereof, and a diaphragm for opening the discharge hole in one direction, the inlet hole communicating with the inside thereof; An air tank fixed to the rotating cylinder while surrounding the rotating cylinder including the discharge hole such that a space is formed between the outer wall of the rotating cylinder and communicating with the outlet hole; Rotating means for rotating the rotating cylinder; An eccentric rotating body located inside the rotating cylinder and rotatably coupled to the eccentric shaft; One end is rotatably connected to the eccentric rotating body, and the other end is rotatably connected to the inner wall surface of the rotating cylinder; and the outer circumferential surface of the eccentric rotating body and the wind film and the rotating cylinder are rotated by the rotating cylinder. The space between the inner circumferential surface is gradually reduced, characterized in that the compressed air is discharged to the discharge pipe through the discharge hole.

In addition, the rotating means is characterized in that it comprises a motor having a ring gear fixed to one side wall of the rotating cylinder, the gear is formed on the outer peripheral surface, and a motor gear meshing with the ring gear.

In addition, the air compressor of the present invention is characterized in that the airtight holding means for maintaining the airtight between the inner circumferential surface of the rotating cylinder when the eccentric rotating body is rotated.

The hermetic holding means is characterized in that it has a contact key which is received on the outer circumferential surface of the eccentric rotation body and a spring provided between the contact key and the eccentric rotation body to closely contact the contact key to the inner circumferential surface of the rotating cylinder.

In addition, the end of the inlet pipe is characterized in that it is further provided with a filter for filtering foreign matter in the atmosphere.

The air compressor of the present invention is provided with an air tank, a rotating cylinder, and an eccentric rotating body sequentially inside the outer case, thereby miniaturizing the device, and also reducing the leakage of noise by such an overlapping structure.

1 is a perspective view showing an air compressor of an embodiment of the present invention;

2 is a sectional view of the main part of FIG. 1;

3 is an exploded perspective view of the main part of FIG. 2;

4 is a partial partial cross-sectional perspective view of the air compressor of the present invention;

5 to 8 is a schematic diagram illustrating a compressed state of air,

9 is an exploded view showing the rotating cylinder and the ring gear,

10 is a perspective view showing an air compressor according to another embodiment of the present invention.

1 to 4 show an air compressor of an embodiment of the present invention that introduces air and discharges compressed air of a predetermined pressure.

It is a cylindrical outer case 10, the fixed shaft 20 fixed to the outer case 10, the rotating cylinder 30 and the eccentric rotating body 40 rotatably supported by the fixed shaft 20 Equipped.

The fixed shaft 20 is installed in the center of the outer case 10 and the rotating cylinder 30, and the central shaft 21 for rotatably supporting the rotating cylinder 30, with respect to the central axis 21 It is provided in a bent and eccentric position and consists of an eccentric shaft 22 for rotatably supporting the eccentric rotating body 40.

The rotary cylinder 30 is rotated by the rotation means to rotate in conjunction with the eccentric rotary body 40.

The central shaft 21 is fixedly supported by penetrating both side walls of the outer case 10, and an inlet hole 22a is formed at an outer circumferential surface thereof so as to protrude outward through one side wall of the outer case 10. The inlet pipe 22b and the outlet hole 21a are formed in the outer peripheral surface of the other end, and the outlet pipe 21b which penetrates the other side wall of the outer case 10 and protrudes outside is provided.

The inlet pipe 22b side is provided with a filter 70 for filtering moisture or foreign matter in the air.

In addition, the eccentric shaft 22 is formed as a solid shaft.

The rotating cylinder 30 has a central shaft 21 penetrated therein, and both side wall portions thereof are rotatably supported by the central shaft 21, and discharge holes 31 are formed on an outer circumferential surface thereof. The diaphragm 35 which opens the opening in one direction is provided. At this time, the air introduced through the inlet pipe 22b is introduced into the rotating cylinder 30 through the inlet hole 22a.

The diaphragm 35 functions as a check valve, and when the compressed air inside the rotary cylinder 30 is discharged to the outside through the discharge hole 31, the diaphragm 35 is rotated in the direction of opening the discharge hole 31, and vice versa. In this case, the discharge hole 31 is closed.

The eccentric rotating body 40 is installed inside the rotating cylinder 30, and has a circumferential surface in some sections and the circumferential surface is in close contact with the inner circumferential surface of the rotating cylinder 30 to compress the introduced air. do.

In addition, one end thereof is rotatably connected to the eccentric rotating body 40 and the other end is provided with a wind film 50 rotatably connected to the inner wall surface of the rotating cylinder 30, the wind film 50 is a rotating cylinder The rotational force of the 30 is transmitted to the eccentric rotating body 40.

The outer wall of the rotary cylinder 30 is provided with an air tank 60, the air tank 60 includes the discharge hole 31 so as to form a space between the outer wall of the rotary cylinder 30 It is fixed to the rotating cylinder 30 while surrounding the rotating cylinder 30, it is in communication with the outflow hole (21a).

That is, when compressed air is discharged through the discharge hole 31, the compressed air is discharged to the discharge pipe 21b through the discharge hole 21a.

Rotating means for rotating the rotary cylinder 30 is fixed to one side wall of the rotary cylinder 30, the gear gear is formed on the outer peripheral surface and the motor gear (2) meshing with the ring gear (3) It has a motor (1) having a.

The outer side of the ring gear (3) is fixed to the blocking plate (4) so that the air does not flow out through the inlet hole (22a) to be introduced into the rotating cylinder (30).

In addition, the airtight holding means for maintaining the airtight between the inner circumferential surface of the rotary cylinder 30 when the eccentric rotating body 40 is rotated.

In the embodiment of the present invention, the airtight holding means is provided between the contact key 41 is receivably received on the outer circumferential surface of the eccentric rotation body 40, the contact key 41 and the eccentric rotation body 40 is provided A spring 42 for bringing the 41 into close contact with the inner circumferential surface of the rotating cylinder 30 is provided.

In this hermetic holding means, the contact key 41 is brought into close contact with the inner circumferential surface of the rotating cylinder 30 by the spring force, thereby increasing the compression rate of air.

10 shows another embodiment of the air compressor of the present invention, which is a modification of the structure of the air tank 60 of the embodiment.

In other words, this is to connect the discharge pipe 90 directly to the discharge hole 31 so that the compressed air is discharged directly to the discharge pipe (21b) through the discharge pipe (90). In this case, it is possible to quickly provide compressed air after driving the motor 1, thereby preventing generation of compressed heat caused by compressed air, thereby preventing damage to the air compressor of the present invention, and reducing the air compressor weight. .

The air compressor of the embodiment of the present invention as described above operates as follows.

When the motor 1 is driven, the rotating cylinder 30 is rotated by rotating the ring gear 3 through the motor gear 2, and the air from which the foreign matter is removed from the atmosphere is passed through the filter 70. It is introduced into the rotary cylinder 30 through 22a).

At this time, as shown in Figures 5 to 9, as the rotary cylinder 30 is rotated to rotate the eccentric rotation body 40 through the wind film (50).

Since the rotary cylinder 30 and the eccentric rotating body 40 are rotated in an eccentric position, as shown in FIGS. 5 to 8, the contact key 41 of the eccentric rotating body 40 is the inner circumferential surface of the rotating cylinder 30. While being in close contact with each other in order to gradually reduce the space between the rotating cylinder 30 and the eccentric rotating body 40 to compress the air introduced into the inside.

The compressed air is discharged into the air tank 60 space by the diaphragm 35 opening the discharge hole 31, and is discharged to the discharge pipe 21b through the outlet hole 21a.

Claims

In the air compressor which introduces air and discharges compressed air of a predetermined pressure,

A cylindrical outer case 10;

The inlet hole 22a is formed on the outer circumferential surface of the outer case 10 and fixed to penetrate through both side walls of the outer case 10. The inlet pipe 22b and the other end which protrude outward through the one side wall of the outer case 10. Outflow holes 21a are formed on an outer circumferential surface thereof, and have a central axis 21 at both ends having a discharge pipe 21b protruding outward through the other side wall of the outer case 10, and a central axis 21 at both ends. A fixed shaft 20 having an eccentric shaft 22 which is bent from and eccentric;

Both side wall portions are rotatably supported on the central shafts 21 at both ends, and discharge holes 31 are formed on an outer circumferential surface thereof, and a plate 35 is provided to open the discharge holes 31 in one direction. A rotating cylinder 30 in communication with the inside thereof;

Including the discharge hole 31 so as to form a space between the outer wall of the rotating cylinder 30 is fixed to the rotating cylinder 30 surrounding the rotating cylinder 30, the communication with the outlet hole 21a An air tank 60;

Rotating means for rotating the rotating cylinder 30;

An eccentric rotating body (40) positioned inside the rotating cylinder (30) and rotatably coupled to the eccentric shaft (22);

And one end of which is connected rotatably to the eccentric rotating body 40 and the other end of which is connected to the inner wall surface of the rotating cylinder 30 so as to be rotatable.

The space between the outer circumferential surface of the eccentric rotating body 30 and the wind film 50 and the inner circumferential surface of the rotating cylinder 30 is gradually reduced by the rotation of the rotating cylinder 30, thereby compressing the compressed air into the discharge hole 31. Air compressor, characterized in that to be discharged through the discharge pipe (21b) through.
According to claim 1, wherein the rotating means is fixed to one side wall of the rotary cylinder 30 has a ring gear (3) having a gear on the outer peripheral surface, and a motor gear (2) meshing with the ring gear (3) An air compressor comprising a motor (1).
The air compressor according to claim 1 or 2, further comprising an airtight holding means for maintaining the airtightness between the eccentric rotating body and the inner circumferential surface of the rotating cylinder (30).
The method of claim 3, wherein the airtight holding means is provided between the contact key 41 and the contact key 41 and the eccentric rotation body 40 so as to be retractably received on the outer peripheral surface of the eccentric rotation body 40 An air compressor comprising a spring (42) for bringing a key (41) into close contact with an inner circumferential surface of a rotating cylinder (30).
The air compressor according to claim 1 or 2, further comprising a filter (70) for filtering foreign matter in the atmosphere at the end of said inlet pipe (22b).